1. (v.t.)reduce to bring down to a smaller size, amount, price, etc.
2. reduce to lower in degree, intensity, etc.
3. reduce to demote to a lower rank
4. reduce to treat analytically, as a complex idea.
5. reduce to act destructively upon (a substance or object): a house reduced to ashes.
6. reduce to bring to a certain state: to reduce someone to tears.
7. reduce to evaporate water from, as a sauce, by boiling.
8. reduce to change the denomination or form, but not the value, of (a fraction, polynomial, etc.).
9. reduce to deoxidize.
10. reduce to add hydrogen to.
11. reduce to decrease the positive charge on (an ion) by adding electrons.
12. reduce to convert (ore minerals) to a metallic state by driving off nonmetallic elements; smelt.
13. reduce to thin or dilute: to reduce paint with turpentine.
14. reduce to restore to the normal place, relation, or condition, as a fractured bone.
15. reduce to pronounce (a vowel) as (&schwa;) or another unstressed, centralized vowel.
16. (v.i.)reduce to become reduced.
17. reduce to lose weight, as by dieting.
18. reduce to be equal to or turned into something.
19. reduce to undergo meiosis.
Etymology: (1325–75; to lead back < L redūcere to lead back, bring back =re-re - +dūcere to lead)
Definition of 'reduce'
Princeton's WordNet
1. (verb)reduce, cut down, cut back, trim, trim down, trim back, cut, bring down cut down on; make a reduction in "reduce your daily fat intake"; "The employer wants to cut back health benefits"
2. (verb)reduce make less complex "reduce a problem to a single question"
3. (verb)reduce bring to humbler or weaker state or condition "He reduced the population to slavery"
4. (verb)reduce simplify the form of a mathematical equation of expression by substituting one term for another
5. (verb)reduce lower in grade or rank or force somebody into an undignified situation "She reduced her niece to a servant"
6. (verb)reduce, come down, boil down be the essential element "The proposal boils down to a compromise"
7. (verb)shrink, reduce reduce in size; reduce physically "Hot water will shrink the sweater"; "Can you shrink this image?"
8. (verb)reduce lessen and make more modest "reduce one's standard of living"
9. (verb)reduce, scale down make smaller "reduce an image"
10. (verb)deoxidize, deoxidise, reduce to remove oxygen from a compound, or cause to react with hydrogen or form a hydride, or to undergo an increase in the number of electrons
11. (verb)reduce, tighten narrow or limit "reduce the influx of foreigners"
12. (verb)repress, quash, keep down, subdue, subjugate, reduce put down by force or intimidation "The government quashes any attempt of an uprising"; "China keeps down her dissidents very efficiently"; "The rich landowners subjugated the peasants working the land"
13. (verb)reduce undergo meiosis "The cells reduce"
14. (verb)reduce reposition (a broken bone after surgery) back to its normal site
15. (verb)reduce destress and thus weaken a sound when pronouncing it
16. (verb)abridge, foreshorten, abbreviate, shorten, cut, contract, reduce reduce in scope while retaining essential elements "The manuscript must be shortened"
17. (verb)boil down, reduce, decoct, concentrate be cooked until very little liquid is left "The sauce should reduce to one cup"
18. (verb)reduce, boil down, concentrate cook until very little liquid is left "The cook reduced the sauce by boiling it for a long time"
19. (verb)dilute, thin, thin out, reduce, cut lessen the strength or flavor of a solution or mixture "cut bourbon"
20. (verb)reduce, melt off, lose weight, slim, slenderize, thin, slim down take off weight
1. (verb)reduce to cause to be less attempts to reduce the amount of waste; The prices are reduced by 25%.
Definition of 'reduce'
Webster Dictionary
1. (noun)reduce to bring or lead back to any former place or condition
2. (noun)reduce to bring to any inferior state, with respect to rank, size, quantity, quality, value, etc.; to diminish; to lower; to degrade; to impair; as, to reduce a sergeant to the ranks; to reduce a drawing; to reduce expenses; to reduce the intensity of heat
3. (noun)reduce to bring to terms; to humble; to conquer; to subdue; to capture; as, to reduce a province or a fort
4. (noun)reduce to bring to a certain state or condition by grinding, pounding, kneading, rubbing, etc.; as, to reduce a substance to powder, or to a pasty mass; to reduce fruit, wood, or paper rags, to pulp
5. (noun)reduce to bring into a certain order, arrangement, classification, etc.; to bring under rules or within certain limits of descriptions and terms adapted to use in computation; as, to reduce animals or vegetables to a class or classes; to reduce a series of observations in astronomy; to reduce language to rules
6. (noun)reduce to change, as numbers, from one denomination into another without altering their value, or from one denomination into others of the same value; as, to reduce pounds, shillings, and pence to pence, or to reduce pence to pounds; to reduce days and hours to minutes, or minutes to days and hours
7. (noun)reduce to change the form of a quantity or expression without altering its value; as, to reduce fractions to their lowest terms, to a common denominator, etc
8. (noun)reduce to bring to the metallic state by separating from impurities; hence, in general, to remove oxygen from; to deoxidize; to combine with, or to subject to the action of, hydrogen; as, ferric iron is reduced to ferrous iron; or metals are reduced from their ores; -- opposed to oxidize
9. (noun)reduce to restore to its proper place or condition, as a displaced organ or part; as, to reduce a dislocation, a fracture, or a hernia
Definitions of reduce 
Afrikaans: verminder
Arabic: يُقَلِّل
Bulgarian: намалявам
Brazilian: reduzir
Czech: snížit
German: herabsetzen
Danish: reducere; nedsætte
Greek: μειώνω, ελαττώνω
Spanish: reducir
Estonian: vähendama
Farsi: کاهش دادن؛ پایین آوردن
Finnish: alentaa
French: réduire
Hebrew: לְהַקטִין
Hindi: घटाना
Croatian: reducirati, smanjiti
Hungarian: csökkent
Indonesian: menurunkan
Icelandic: minnka, lækka
Italian: ridurre
Japanese: 縮小する
Korean: 줄이다
Lithuanian: sumažinti
Latvian: samazināt; pazemināt
Malay: mengurangkan
Dutch: verminderen
Norwegian: sette ned, redusere
Polish: obniżyć, zmniejszyć
Persian: کاهش دادن؛ پایین آوردن
Pashto: كمول، لږول،تنزيلول، سپكيد
Portuguese: reduzir
Romanian: a reduce
Russian: снижать
Slovak: znížiť
Slovenian: zmanjšati
Serbian: smanjiti
Swedish: reducera, minska, sänka
Thai: ทำให้เล็กลง
Turkish: azaltmak
Taiwanese: 減少，縮小
Ukrainian: зменшувати, знижувати
Urdu: گھٹانا یا گھٹنا
Vietnamese: giảm
Chinese: 减少，减小
