What does fat mean?

Definitions for fat

This dictionary definitions page includes all the possible meanings, example usage and translations of the word fat.

Princeton's WordNet

  1. fatnoun

    a soft greasy substance occurring in organic tissue and consisting of a mixture of lipids (mostly triglycerides)

    "pizza has too much fat"

  2. adipose tissue, fat, fatty tissuenoun

    a kind of body tissue containing stored fat that serves as a source of energy; it also cushions and insulates vital organs

    "fatty tissue protected them from the severe cold"

  3. fatness, fat, blubber, avoirdupoisadjective

    excess bodily weight

    "she disliked fatness in herself as well as in others"

  4. fatadjective

    having an (over)abundance of flesh

    "he hadn't remembered how fat she was"

  5. fatadjective

    having a relatively large diameter

    "a fat rope"

  6. fatty, fatadjective

    containing or composed of fat

    "fatty food"; "fat tissue"

  7. fat, juicyadjective


    "a juicy contract"; "a nice fat job"

  8. fat, fertile, productive, richverb

    marked by great fruitfulness

    "fertile farmland"; "a fat land"; "a productive vineyard"; "rich soil"

  9. fatten, fat, flesh out, fill out, plump, plump out, fatten out, fatten upverb

    make fat or plump

    "We will plump out that poor starving child"

Samuel Johnson's Dictionary

  1. FATadjective

    Etymology: fæt, Saxon.

    When gods have hot backs, what shall poor men do? For me, I am here a Windsor stag, and the fattest, I think, i’ th’ forest. William Shakespeare, Merry Wives of Windsor.

    Let our wives
    Appoint a meeting with this old fat fellow. William Shakespeare.

    ’Tis a fine thing to be fat and smooth. Roger L'Estrange.

    Spare diet and labour will keep constitutions, where this disposition is the strongest, from being fat: you may see in an army forty thousand foot-soldiers without a fat man; and I dare affirm, that by plenty and rest twenty of the forty shall grow fat. John Arbuthnot, on Aliments.

    O souls! in whom no heav’nly fire is found,
    Fat minds, and ever-grov’ling on the ground. John Dryden, Pers.

    Some are allured to law, not on the contemplation of equity, but on the promising and pleasing thoughts of litigious terms, fat contentions, and flowing fees. John Milton.

    A fat benefice is that which so abounds with an estate and revenues, that a man may expend a great deal in delicacies of eating and drinking. John Ayliffe, Parergon.

  2. Fatnoun

    An oily and sulphureous part of the blood, deposited in the cells of the membrana adiposa, from the innumerable little vessels which are spread amongst them. The fat is to be found immediately under the skin, in all the parts of the body, except in the forehead, eyelids, lips, upper part of the ear, yard, and scrotum. In some the vesicles of the membrana adiposa are so full, that the fat is an inch or more thick; and in others they are almost flat, containing little or no fat. There are two sorts of fat; one yellow, soft, and lax, which is easily melted, called pinguedo; another firm, white, brittle, and which is not so easily melted, called sebum, suet, or tallow. Some reckon the marrow of the bones for a third sort of fat. John Quincy

    In this ointment the strangest and hardest ingredients to come by, are the moss upon the skull of a dead man unburied, and the fats of a boar and a bear, killed in the act of generation. Francis Bacon, Natural History, №. 998.

    This membrane separates an oily liquor called fat: when the fibres are lax, and the aliment too redundant, great part of it is converted into this oily liquor. John Arbuthnot, on Aliments.

  3. Fatnoun

    A vessel in which any thing is put to ferment or be soaked.

    Etymology: fæt , Saxon; vatte, Dutch.

    The fats shall overflow with wine and oil. Joel ii. 24.

    A white stone used for flagging floors, for cisterns, and tanners fats. John Woodward, on Fossils.

  4. To Fatverb

    To make fat; to fatten; to make plump and fleshy with abundant food.

    Etymology: from the noun.

    Oh how this villany
    Doth fat me with the very thoughts of it! William Shakespeare, Tit. Andr.

    Ere this
    I should have fatted all the region kites
    With this slave’s offal. William Shakespeare, Hamlet.

    They fat such enemies as they take in the wars, that they may devour them. George Abbot, Description of the World.

    The Caribbees were wont to geld their children, on purpose to fat and eat them. John Locke.

    Cattle fatted by good pasturage, after violent motion, sometimes die suddenly. John Arbuthnot, on Diet.

  5. To Fatverb

    To grow fat; to grow full fleshed.

    Clarence, he is well repaid;
    He is frank’d up to fatting for his pains. William Shakespeare, Rich. III.

    The one labours in his duty with a good conscience; the other, like a beast, but fatting up for the slaughter. Roger L'Estrange.

    An old ox fats as well, and is as good, as a young one. John Mortimer, Husbandry.


  1. Fat

    In nutrition, biology, and chemistry, fat usually means any ester of fatty acids, or a mixture of such compounds, most commonly those that occur in living beings or in food.The term often refers specifically to triglycerides (triple esters of glycerol), that are the main components of vegetable oils and of fatty tissue in animals; or, even more narrowly, to triglycerides that are solid or semisolid at room temperature, thus excluding oils. The term may also be used more broadly as a synonym of lipid—any substance of biological relevance, composed of carbon, hydrogen, or oxygen, that is insoluble in water but soluble in non-polar solvents. In this sense, besides the triglycerides, the term would include several other types of compounds like mono- and diglycerides, phospholipids (such as lecithin), sterols (such as cholesterol), waxes (such as beeswax), and free fatty acids, which are usually present in human diet in smaller amounts.Fats are one of the three main macronutrient groups in human diet, along with carbohydrates and proteins, and the main components of common food products like milk, butter, tallow, lard, salt pork, and cooking oils. They are a major and dense source of food energy for many animals and play important structural and metabolic functions, in most living beings, including energy storage, waterproofing, and thermal insulation. The human body can produce the fat it requires from other food ingredients, except for a few essential fatty acids that must be included in the diet. Dietary fats are also the carriers of some flavor and aroma ingredients and vitamins that are not water-soluble.


  1. fat

    Fat is a type of nutrient that comes from both plant and animal sources. It is one of the essential elements of food, along with protein and carbohydrates, and is necessary for maintaining good health. Fat provides the body with energy and also supports a number of functions in it, such as vitamin and mineral absorption, blood clotting, building cells, and muscle movement. There are two main types of fat: unsaturated and saturated fat. It is stored in the body and used as a source of energy when needed. However, excessive intake can lead to weight gain and related health problems.

Webster Dictionary

  1. Fatnoun

    a large tub, cistern, or vessel; a vat

  2. Fatnoun

    a measure of quantity, differing for different commodities

  3. Fat

    abounding with fat

  4. Fat

    fleshy; characterized by fatness; plump; corpulent; not lean; as, a fat man; a fat ox

  5. Fat

    oily; greasy; unctuous; rich; -- said of food

  6. Fat

    exhibiting the qualities of a fat animal; coarse; heavy; gross; dull; stupid

  7. Fat

    fertile; productive; as, a fat soil; a fat pasture

  8. Fat

    rich; producing a large income; desirable; as, a fat benefice; a fat office; a fat job

  9. Fat

    abounding in riches; affluent; fortunate

  10. Fat

    of a character which enables the compositor to make large wages; -- said of matter containing blank, cuts, or many leads, etc.; as, a fat take; a fat page

  11. Fatnoun

    an oily liquid or greasy substance making up the main bulk of the adipose tissue of animals, and widely distributed in the seeds of plants. See Adipose tissue, under Adipose

  12. Fatnoun

    the best or richest productions; the best part; as, to live on the fat of the land

  13. Fatnoun

    work. containing much blank, or its equivalent, and, therefore, profitable to the compositor

  14. Fatadjective

    to make fat; to fatten; to make plump and fleshy with abundant food; as, to fat fowls or sheep

  15. Fatverb

    to grow fat, plump, and fleshy

  16. Etymology: [See Vat, n.]


  1. Fat

    Fats consist of a wide group of compounds that are generally soluble in organic solvents and generally insoluble in water. Chemically, fats are triglycerides: triesters of glycerol and any of several fatty acids. Fats may be either solid or liquid at room temperature, depending on their structure and composition. Although the words "oils", "fats", and "lipids" are all used to refer to fats, in reality, fat is a subset of lipid. "Oils" is usually used to refer to fats that are liquids at normal room temperature, while "fats" is usually used to refer to fats that are solids at normal room temperature. "Lipids" is used to refer to both liquid and solid fats, along with other related substances, usually in a medical or biochemical context. The word "oil" is also used for any substance that does not mix with water and has a greasy feel, such as petroleum, heating oil, and essential oils, regardless of its chemical structure. Fats form a category of lipid, distinguished from other lipids by their chemical structure and physical properties. This category of molecules is important for many forms of life, serving both structural and metabolic functions. They are an important part of the diet of most heterotrophs. Fats or lipids are broken down in the body by enzymes called lipases produced in the pancreas.

Chambers 20th Century Dictionary

  1. Fat

    fat, adj. plump, fleshy: fruitful, esp. profitable: gross: thick, full-bodied, esp. of printing-types.—n. an oily substance under the skin: solid animal oil: the richest part of anything.—v.t. to make fat.—v.i. to grow fat:—pr.p. fat′ting; pa.p. fat′ted.adj. Fat′brained (Shak.), dull of apprehension.—ns. Fat′-hen (prov.), any one of various plants of thick succulent foliage, esp. pigweed, orach, and ground-ivy; Fat′ling, a young animal fattened for slaughter.—adj. small and fat.—n. Fat′-lute, a mixture of pipe-clay and linseed-oil, for filling joints, &c.—adv. Fat′ly, grossly: in a lumbering manner.—n. Fat′ness, quality or state of being fat: fullness of flesh: richness: fertility: that which makes fertile.—v.t. Fat′ten, to make fat or fleshy: to make fertile.—v.i. to grow fat.—ns. Fat′tener, he who, or that which, fattens; Fat′tening, the process of making fat: state of growing fat; Fat′tiness.—adjs. Fat′tish, somewhat fat; Fat′-witted, dull, stupid; Fat′ty, containing fat or having the qualities of fat.—Fat images, those in relief.—The fat is in the fire, things have gone to confusion. [A.S. fæt; Ger. fett.]

  2. Fat

    fat, n. a vessel for holding liquids: a vat: a dry measure of nine bushels. [See Vat.]

Dictionary of Nautical Terms

  1. fat

    If the tressing in or tuck of a ship's quarter under water hangs deep, or is overfull, they say she has a fat quarter.

Editors Contribution

  1. fatadjective

    Having a lot of flesh in the body.

    I hope nobody calls me a fat person after eating.

    Submitted by zakaria1409 on July 17, 2022  

Suggested Resources

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    Song lyrics by fat -- Explore a large variety of song lyrics performed by fat on the Lyrics.com website.

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    Fast vs. Fat -- In this Grammar.com article you will learn the differences between the words Fast and Fat.

Surnames Frequency by Census Records

  1. FAT

    According to the U.S. Census Bureau, Fat is ranked #156044 in terms of the most common surnames in America.

    The Fat surname appeared 104 times in the 2010 census and if you were to sample 100,000 people in the United States, approximately 0 would have the surname Fat.

    48% or 50 total occurrences were Asian.
    28.8% or 30 total occurrences were White.
    20.1% or 21 total occurrences were of Hispanic origin.

Matched Categories

British National Corpus

  1. Spoken Corpus Frequency

    Rank popularity for the word 'fat' in Spoken Corpus Frequency: #3656

  2. Written Corpus Frequency

    Rank popularity for the word 'fat' in Written Corpus Frequency: #2572

  3. Nouns Frequency

    Rank popularity for the word 'fat' in Nouns Frequency: #1764

  4. Adjectives Frequency

    Rank popularity for the word 'fat' in Adjectives Frequency: #466

How to pronounce fat?

How to say fat in sign language?


  1. Chaldean Numerology

    The numerical value of fat in Chaldean Numerology is: 4

  2. Pythagorean Numerology

    The numerical value of fat in Pythagorean Numerology is: 9

Examples of fat in a Sentence

  1. British Journalist Katie Hopkins:

    We give fat really cute names, don't we ? we have baby weight, puppy fat, love handles, muffin top, chunky monkey -- ultimately these are all nice names for something that's not very nice... You're supporting Kelly Clarkson because everybody likes to have a fat friend, because the great thing about a fat friend is it makes you feel slimmer.

  2. Happy Gilmore:

    Happy Golf requires goofy pants and a fat ass. You should talk to my neighbor the accountant. Probably a great golfer. Huge ass.

  3. Woody Allen:

    What if nothing exists and we're all in somebody's dream Or what's worse, what if only that fat guy in the third row exists

  4. Emily Dickinson:

    Anger as soon as fed is dead- 'Tis starving makes it fat.

  5. Lisanne Blauw:

    The function of brown fat tissue is to burn fat to generate heat, which is important to prevent a decline in body temperature during cold exposure. Therefore, we hypothesize that brown fat plays a role in the mechanism underlying the association between outdoor temperature and diabetes, in warmer climates, brown fat may be less activated, which may causally lead to insulin resistance and diabetes.

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Translations for fat

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