Definition of “fat” - English Dictionary

“fat” in British English

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fatadjective

uk /fæt/ us /fæt/ fatter, fattest

fat adjective (BIG)

A1 having a lot of flesh on the body:

Like most women, she thinks she's fat.
I hate my fat thighs.
He eats all the time but he never gets fat.

thick or large:

He passed me a fat envelope full of money.
Some producers of mineral water have made fat profits.

More examples

  • If you feed your dog on cakes and biscuits, it's not surprising he's so fat.
  • Runners come in all shapes and sizes - fat and thin, short and tall.
  • He pulled out a big fat wallet stuffed with bank notes.
  • A grub looks like a short fat worm.
  • Are you suggesting (that) I look fat in these trousers?

Idiom(s)

fatnoun

uk /fæt/ us /fæt/

[ U ] the substance under the skin of humans and animals that stores energy and keeps them warm:

body fat
Women have a layer of subcutaneous fat (= fat under the skin), which provides them with better insulation than men.

More examples

  • Eating too much fat causes your arteries to clog up.
  • Try to avoid foods which contain a lot of fat.
  • A diet that is high in fat can lead to obesity.
  • The dog had rolls of fat along its neck.
  • Streaky bacon contains strips of fat.

(Definition of “fat” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“fat” in American English

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fatadjective [ -er/-est only ]

us /fæt/ -tt-

fat adjective [ -er/-est only ] (FLESHY)

having a lot of flesh on the body:

Her weight’s normal but she insists she’s fat.

Fat can also mean thick or big:

fat adjective [ -er/-est only ] (WEALTHY)

infml having or worth a lot of money:

a fat profit

Idiom(s)

fatnoun [ C/U ]

us /fæt/

fat noun [ C/U ] (SUBSTANCE)

biology the substance under the skin of humans and animals that stores energy and keeps them warm

Fat is also a solid or liquid substance obtained from animals or plants and used esp. in cooking.

(Definition of “fat” from the Cambridge Academic Content Dictionary © Cambridge University Press)