What does base mean?

Definitions for base

Here are all the possible meanings and translations of the word base.

Princeton's WordNet

  1. base, base of operationsnoun

    installation from which a military force initiates operations

    "the attack wiped out our forward bases"

  2. foundation, base, fundament, foot, groundwork, substructure, understructurenoun

    lowest support of a structure

    "it was built on a base of solid rock"; "he stood at the foot of the tower"

  3. base, bagnoun

    a place that the runner must touch before scoring

    "he scrambled to get back to the bag"

  4. basenoun

    the bottom or lowest part

    "the base of the mountain"

  5. basenoun

    (anatomy) the part of an organ nearest its point of attachment

    "the base of the skull"

  6. floor, basenoun

    a lower limit

    "the government established a wage floor"

  7. basis, base, foundation, fundament, groundwork, cornerstonenoun

    the fundamental assumptions from which something is begun or developed or calculated or explained

    "the whole argument rested on a basis of conjecture"

  8. base, pedestal, standnoun

    a support or foundation

    "the base of the lamp"

  9. nucleotide, basenoun

    a phosphoric ester of a nucleoside; the basic structural unit of nucleic acids (DNA or RNA)

  10. base, alkalinoun

    any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water

    "bases include oxides and hydroxides of metals and ammonia"

  11. basenoun

    the bottom side of a geometric figure from which the altitude can be constructed

    "the base of the triangle"

  12. basis, basenoun

    the most important or necessary part of something

    "the basis of this drink is orange juice"

  13. base, radixnoun

    (numeration system) the positive integer that is equivalent to one in the next higher counting place

    "10 is the radix of the decimal system"

  14. base, homenoun

    the place where you are stationed and from which missions start and end

  15. al-Qaeda, Qaeda, al-Qa'ida, al-Qaida, Basenoun

    a terrorist network intensely opposed to the United States that dispenses money and logistical support and training to a wide variety of radical Islamic terrorist groups; has cells in more than 50 countries

  16. root, root word, base, stem, theme, radicalnoun

    (linguistics) the form of a word after all affixes are removed

    "thematic vowels are part of the stem"

  17. infrastructure, basenoun

    the stock of basic facilities and capital equipment needed for the functioning of a country or area

    "the industrial base of Japan"

  18. basenoun

    the principal ingredient of a mixture

    "glycerinated gelatin is used as a base for many ointments"; "he told the painter that he wanted a yellow base with just a hint of green"; "everything she cooked seemed to have rice as the base"

  19. basenoun

    a flat bottom on which something is intended to sit

    "a tub should sit on its own base"

  20. baseadjective

    (electronics) the part of a transistor that separates the emitter from the collector

  21. basal, baseadjective

    serving as or forming a base

    "the painter applied a base coat followed by two finishing coats"

  22. base, baseborn, humble, lowlyadjective

    of low birth or station (`base' is archaic in this sense)

    "baseborn wretches with dirty faces"; "of humble (or lowly) birth"

  23. baseadjective

    (used of metals) consisting of or alloyed with inferior metal

    "base coins of aluminum"; "a base metal"

  24. base, immoraladjective

    not adhering to ethical or moral principles

    "base and unpatriotic motives"; "a base, degrading way of life"; "cheating is dishonorable"; "they considered colonialism immoral"; "unethical practices in handling public funds"

  25. base, mean, meanspiritedadjective

    having or showing an ignoble lack of honor or morality

    "that liberal obedience without which your army would be a base rabble"- Edmund Burke; "taking a mean advantage"; "chok'd with ambition of the meaner sort"- Shakespeare; "something essentially vulgar and meanspirited in politics"

  26. base, basebornadjective


  27. baseverb

    debased; not genuine

    "an attempt to eliminate the base coinage"

  28. establish, base, ground, foundverb

    use as a basis for; found on

    "base a claim on some observation"

  29. baseverb

    situate as a center of operations

    "we will base this project in the new lab"

  30. free-base, baseverb

    use (purified cocaine) by burning it and inhaling the fumes

Webster Dictionary

  1. Baseadjective

    of little, or less than the usual, height; of low growth; as, base shrubs

  2. Baseadjective

    low in place or position

  3. Baseadjective

    of humble birth; or low degree; lowly; mean

  4. Baseadjective

    illegitimate by birth; bastard

  5. Baseadjective

    of little comparative value, as metal inferior to gold and silver, the precious metals

  6. Baseadjective

    alloyed with inferior metal; debased; as, base coin; base bullion

  7. Baseadjective

    morally low. Hence: Low-minded; unworthy; without dignity of sentiment; ignoble; mean; illiberal; menial; as, a base fellow; base motives; base occupations

  8. Baseadjective

    not classical or correct

  9. Baseadjective

    deep or grave in sound; as, the base tone of a violin

  10. Baseadjective

    not held by honorable service; as, a base estate, one held by services not honorable; held by villenage. Such a tenure is called base, or low, and the tenant, a base tenant

  11. Basenoun

    the bottom of anything, considered as its support, or that on which something rests for support; the foundation; as, the base of a statue

  12. Basenoun

    fig.: The fundamental or essential part of a thing; the essential principle; a groundwork

  13. Basenoun

    the lower part of a wall, pier, or column, when treated as a separate feature, usually in projection, or especially ornamented

  14. Basenoun

    the lower part of a complete architectural design, as of a monument; also, the lower part of any elaborate piece of furniture or decoration

  15. Basenoun

    that extremity of a leaf, fruit, etc., at which it is attached to its support

  16. Basenoun

    the positive, or non-acid component of a salt; a substance which, combined with an acid, neutralizes the latter and forms a salt; -- applied also to the hydroxides of the positive elements or radicals, and to certain organic bodies resembling them in their property of forming salts with acids

  17. Basenoun

    the chief ingredient in a compound

  18. Basenoun

    a substance used as a mordant

  19. Basenoun

    the exterior side of the polygon, or that imaginary line which connects the salient angles of two adjacent bastions

  20. Basenoun

    the line or surface constituting that part of a figure on which it is supposed to stand

  21. Basenoun

    the number from which a mathematical table is constructed; as, the base of a system of logarithms

  22. Basenoun

    a low, or deep, sound. (Mus.) (a) The lowest part; the deepest male voice. (b) One who sings, or the instrument which plays, base

  23. Basenoun

    a place or tract of country, protected by fortifications, or by natural advantages, from which the operations of an army proceed, forward movements are made, supplies are furnished, etc

  24. Basenoun

    the smallest kind of cannon

  25. Basenoun

    that part of an organ by which it is attached to another more central organ

  26. Basenoun

    the basal plane of a crystal

  27. Basenoun

    the ground mass of a rock, especially if not distinctly crystalline

  28. Basenoun

    the lower part of the field. See Escutcheon

  29. Basenoun

    the housing of a horse

  30. Basenoun

    a kind of skirt ( often of velvet or brocade, but sometimes of mailed armor) which hung from the middle to about the knees, or lower

  31. Basenoun

    the lower part of a robe or petticoat

  32. Basenoun

    an apron

  33. Basenoun

    the point or line from which a start is made; a starting place or a goal in various games

  34. Basenoun

    a line in a survey which, being accurately determined in length and position, serves as the origin from which to compute the distances and positions of any points or objects connected with it by a system of triangles

  35. Basenoun

    a rustic play; -- called also prisoner's base, prison base, or bars

  36. Basenoun

    any one of the four bounds which mark the circuit of the infield

  37. Basenoun

    to put on a base or basis; to lay the foundation of; to found, as an argument or conclusion; -- used with on or upon

  38. Baseadjective

    to abase; to let, or cast, down; to lower

  39. Baseadjective

    to reduce the value of; to debase


  1. Base

    A base in chemistry is a substance that can accept hydrogen cations or, more generally, donate a pair of valence electrons. A soluble base is called an alkali if it contains and releases hydroxide ions quantitatively. The Brønsted-Lowry theory defines bases as proton acceptors, while the more general Lewis theory defines bases as electron pair donors, including Lewis acids other than protons. The oldest Arrhenius theory defines bases as hydroxide anions, which is strictly applicable only to alkali. In water, by altering the autoionization equilibrium, bases give solutions with a hydrogen ion activity lower than that of pure water, i.e., a pH higher than 7.0 at standard conditions. Examples of common bases are sodium hydroxide and ammonia. Metal oxides, hydroxides and especially alkoxides are basic, and counteranions of weak acids are weak bases. Bases can be thought of as the chemical opposite of acids. A reaction between an acid and base is called neutralization. Bases and acids are seen as opposites because the effect of an acid is to increase the hydronium ion concentration in water, whereas bases reduce this concentration. Bases and acids are typically found in aqueous solution forms. Aqueous solutions of bases react with aqueous solutions of acids to produce water and salts in aqueous solutions in which the salts separate into their component ions. If the aqueous solution is saturated with a given salt solute, any additional such salt precipitates out of the solution.

Chambers 20th Century Dictionary

  1. Base

    bās, n. that on which a thing rests: foot: bottom: foundation: support: the chief ingredient, as in dyeing and chemistry: the starting-point, in a race: the fixed goal across which the ball is struck in hockey, the fixed stations at base-ball: the point from which the operations of a campaign are conducted: a measured line serving as a basis for trigonometrical calculations: the surface on which a plane or solid figure stands: (chem.) a term applied to a compound body, generally consisting of a metal united with oxygen; (archit.) the foot or lower member of a pillar, on which the shaft rests: (her.) the lower portion of the shield—any figure placed on it is said to be 'in base:' a small portion of the base of a shield parted off by a horizontal line is sometimes called a base.—v.t. to found or place on a base:—pr.p. bās′ing; pa.p. based (bāst).—adjs. Bas′al, Bas′ilar, pertaining to or situated at the base, esp. of the skull; Base′less, without a base or foundation.—ns. Base′lessness; Base′ment, the base or lowest story of a building.—adj. Bas′en-wide (Spens.), widely extended.—n. Base′-plate, the foundation plate of a piece of heavy machinery.—n.pl. Bas′es, a kind of embroidered mantle which hung down from the middle to about the knees or lower, worn by knights on horseback: (Spens.) armour for the legs.—ns. Base′-string, the string of a musical instrument that gives the lowest note; Base′-vīol (same as Bass-viol).—adj. Bas′ic (chem.), belonging to or of the nature of a base.—v.t. Bas′ify (chem.), to convert into a salifiable base:—pr.p. bās′ifying; pa.p. bās′ifīed. [Fr.—L.—Gr. basisba-, in bainein, to go.]

  2. Base

    bās, adj. low in place, value, estimation, or principle: mean: vile: worthless: debased: counterfeit: (law) servile, as opposed to free: humble: (B. and Shak.) lowly.—adj. Base′-born, illegitimate.—adv. Base′ly.—adj. Base′-mind′ed, of a low mind or spirit: mean.—n. Base′ness.—adj. Base′-spir′ited, mean-spirited. [Fr. bas—Low L. bassus, thick, fat, a vulgar Roman word, found also in name Bassus.]

  3. Base

    bās, v.t. a form of Abase.

  4. Base

    bās, n. an old game played by two sides occupying contiguous spaces, called bases or homes, off which any player is liable to be touched with the hand or struck by a ball by the enemy, and so attached to their sides. Forms of this game are known as Prisoner's Base or Bars, and Rounders, and the national American game of Base-ball is a development from it.

Dictionary of Military and Associated Terms

  1. base

    1. A locality from which operations are projected or supported. 2. An area or locality containing installations which provide logistic or other support. See also establishment. 3. Home airfield or home carrier. See also base of operations; facility.

Dictionary of Nautical Terms

  1. base

    The breech of a gun. Also, the lowest part of the perimeter of a geometrical figure. When applied to a delta it is that edge of it which is washed by the sea, or recipient of the deltic branches. Also, the lowest part of a mountain or chain of mountains. Also, the level line on which any work stands, as the foot of a pillar. Also, an old boat-gun; a wall-piece on the musketoon principle, carrying a five-ounce ball.

Military Dictionary and Gazetteer

  1. base

    In fortifications, is the exterior side of the polygon, or that imaginary line which connects the salient angle of two adjacent bastions.

  2. base

    In heraldry, denotes the lower part of the shield.

Suggested Resources

  1. BASE

    What does BASE stand for? -- Explore the various meanings for the BASE acronym on the Abbreviations.com website.


  1. Base

    that part of any appendage that is nearest the body: on the thorax that portion nearest the abdomen; on the abdomen that portion nearest the thorax.

British National Corpus

  1. Spoken Corpus Frequency

    Rank popularity for the word 'base' in Spoken Corpus Frequency: #1174

  2. Written Corpus Frequency

    Rank popularity for the word 'base' in Written Corpus Frequency: #1569

  3. Nouns Frequency

    Rank popularity for the word 'base' in Nouns Frequency: #549

  4. Verbs Frequency

    Rank popularity for the word 'base' in Verbs Frequency: #115

How to pronounce base?

How to say base in sign language?


  1. Chaldean Numerology

    The numerical value of base in Chaldean Numerology is: 2

  2. Pythagorean Numerology

    The numerical value of base in Pythagorean Numerology is: 9

Examples of base in a Sentence

  1. Ali Noorani:

    Without immigration it becomes increasingly impossible to sustain entitlements, much less a functioning health care system, or a local tax base in rural and suburban cities and communities across the country.

  2. Dan Patrick:

    It's about electing a true conservative who will inspire our base of conservatives across this country like they have not been inspired since Ronald Reagan. ... And that's Ted Cruz.

  3. Bob Corker:

    What's happening in America is that the base of each party is demanding those things and unfortunately, the Senate has been willing to respond to the base to break the rules for a short-term outcome that changes the nature of the Senate, both sides have abused the heck out of the filibuster.

  4. Marek Belka:

    Anyway, (financial watchdog) KNF is going in that direction, when it forbids some banks from paying out dividends, thus strengthening (their) capital base and ability to cover losses, as a consequence, banks will have to save (in preparation) for worse times.

  5. Israeli Prime Minister Benjamin Netanyahu:

    Anyone who is going to establish a Palestinian state, anyone who is going to evacuate territories today, is simply giving a base for attacks to radical Islam.

Images & Illustrations of base

  1. basebasebasebasebase

Popularity rank by frequency of use


Translations for base

From our Multilingual Translation Dictionary

  • basisAfrikaans
  • قاعدة, مركز, أساس, فاسق, شائع, منخفض, يستند إلى, يبنى على, دنيءArabic
  • основа, база, фундамент, старт, долнокачествен, основавам се, подъл, неблагороден, неморален, низък, базирам сеBulgarian
  • seu, base, principi, fonament, caserna, basament, innoble, baix, indigne, vil, basar, immoral, abjecte, vulgarCatalan, Valencian
  • základ, báze, patka, pikola, zásada, meta, kořen, základnaCzech
  • Base, Basis, Grundlage, Kaserne, basierenGerman
  • βάση, θεμέλιο, μάνα, έδρα, αγενής, βασίζω, ταπεινός, ποταπός, ευτελής, εδρεύωGreek
  • baziEsperanto
  • base, sede, bajo, basarSpanish
  • aste, alus, baas, alguspunkt, põhi, kodu, peakorter, lähtumaEstonian
  • پایه, اساس, پایگاه, پایَه, ستاد, بُنیاد, مبنا, پِی, بُن, قاعده, باز, ریشه, شالودَه, پایه‌گذاری, پَست, پی‌ریزی, هرزَه, بنیانگذاریPersian
  • alkupiste, kanta, pohja, pesä, emäs, tukikohta, päämaja, kantaluku, perusta, perustus, koti, ala-arvoinen, moraaliton, perustaa, sijaita, matala, säädytön, yleinenFinnish
  • but, base, caserne, coussin, bas, ignoble, indigne, abject, baserFrench
  • neamhlómharIrish
  • base, sede, basearGalician
  • bun-ynnyd, neuchostalManx
  • בסיס, נקודת מוצא, ירודHebrew
  • bazeHaitian Creole
  • bázis, támaszpont, lábazat, alapHungarian
  • հիմք, բազա, ստոր, հիմնվել, ցածրArmenian
  • basarInterlingua
  • bazo, kazerno, apogarIdo
  • veldisstofn, stikkfrí, bækistöðvar, höfuðstöðvar, herstöð, grunnflöturIcelandic
  • base, caserma, basi, sedeItalian
  • 基, 基礎, 司令部Japanese
  • საფუძველიGeorgian
  • базис, таянуу, база, негиз салуу, таман, цоколь, негиздөө, түп, негизделүү, фундамент, байыр, негиз, себеп, жайлашууKyrgyz
  • solumLatin
  • netikumīgs, zemisks, zems, netikumisks, nekrietns, prastsLatvian
  • papa taunga, take, taketakeMāori
  • base, basis, kazerne, vertrekpunt, honk, hoofdkwartier, baserenDutch
  • frie, hovedkvarter, baseNorwegian
  • podstawa, zasada, bazaPolish
  • base, pique, sede, ficar em, basear-se emPortuguese
  • bază, cazarmă, fundamentRomanian
  • основание, базис, база, основа, старт, штаб-квартира, опорный пункт, фундамент, штабRussian
  • baza, osnova, lužina, temeljSerbo-Croatian
  • baza, osnovnica, oporišče, temeljSlovene
  • bas, kasern, början, grund, grunda, oädel, basera, uselSwedish
  • క్షారం, స్థావరం, భూమి, పీఠంTelugu
  • üs, temel, baz, merkez, taban, karargâh, kaideTurkish
  • bazơVietnamese
  • bäd, stabönVolapük

Get even more translations for base »


Find a translation for the base definition in other languages:

Select another language:

  • - Select -
  • 简体中文 (Chinese - Simplified)
  • 繁體中文 (Chinese - Traditional)
  • Español (Spanish)
  • Esperanto (Esperanto)
  • 日本語 (Japanese)
  • Português (Portuguese)
  • Deutsch (German)
  • العربية (Arabic)
  • Français (French)
  • Русский (Russian)
  • ಕನ್ನಡ (Kannada)
  • 한국어 (Korean)
  • עברית (Hebrew)
  • Gaeilge (Irish)
  • Українська (Ukrainian)
  • اردو (Urdu)
  • Magyar (Hungarian)
  • मानक हिन्दी (Hindi)
  • Indonesia (Indonesian)
  • Italiano (Italian)
  • தமிழ் (Tamil)
  • Türkçe (Turkish)
  • తెలుగు (Telugu)
  • ภาษาไทย (Thai)
  • Tiếng Việt (Vietnamese)
  • Čeština (Czech)
  • Polski (Polish)
  • Bahasa Indonesia (Indonesian)
  • Românește (Romanian)
  • Nederlands (Dutch)
  • Ελληνικά (Greek)
  • Latinum (Latin)
  • Svenska (Swedish)
  • Dansk (Danish)
  • Suomi (Finnish)
  • فارسی (Persian)
  • ייִדיש (Yiddish)
  • հայերեն (Armenian)
  • Norsk (Norwegian)
  • English (English)

Word of the Day

Would you like us to send you a FREE new word definition delivered to your inbox daily?

Please enter your email address:

Discuss these base definitions with the community:



    Use the citation below to add this definition to your bibliography:


    "base." Definitions.net. STANDS4 LLC, 2021. Web. 16 Oct. 2021. <https://www.definitions.net/definition/base>.

    Are we missing a good definition for base? Don't keep it to yourself...

    Browse Definitions.net

    Free, no signup required:

    Add to Chrome

    Get instant definitions for any word that hits you anywhere on the web!

    Free, no signup required:

    Add to Firefox

    Get instant definitions for any word that hits you anywhere on the web!


    Are you a words master?

    a custom among some peoples whereby the husband of a pregnant wife is put to bed at the time of bearing the child
    • A. taper
    • B. cazique
    • C. couvade
    • D. macron

    Nearby & related entries:

    Alternative searches for base: