Meaning of “thick” in the English Dictionary

"thick" in British English

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uk /θɪk/ us /θɪk/

thick adjective (NOT THIN)

B1 having a large distance between two sides:

a thick rope
a thick layer of dust
She picked up a thick volume and began to read out loud.
The walls are two metres thick.
a thick (= made of thick material) sweater/coat

More examples

  • The roof of the temple was held up by a row of thick stone columns.
  • The flood left a thick deposit of mud over the entire ground floor of the house.
  • A thick layer of clay lies over the sandstone.
  • A thick mantle of snow lay on the ground.
  • The bomb shelter has concrete walls that are three metres thick.

thick adjective (CLOSE TOGETHER)

B1 growing close together and in large amounts:

thick forest
thick, dark hair

B2 difficult to see through:

Thick, black smoke was pouring out of the chimney.

More examples

  • Even as a tiny baby, she had a thick head of hair.
  • The animal's thick fur provides very good insulation against the arctic cold.
  • A coil of thick blue smoke rose up from his pipe.
  • The planet Venus is enshrouded in thick clouds.
  • Outside, the fog was thick and impenetrable.
adverb uk /ˈθɪ us /ˈθɪ

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

"thick" in American English

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thickadjective [ -er/-est only ]

us /θɪk/

thick adjective [ -er/-est only ] (DEEP)

having a large distance from one side of something to the opposite side:

a thick book/steak
The walls are a foot thick.

thick adjective [ -er/-est only ] (CLOSE TOGETHER)

(of particular things) close together with little space between them:

a thick fog
She had wonderful, thick, brown hair.

thick adjective [ -er/-est only ] (NOT FLOWING)

(of a liquid) not flowing easily:

thick gravy/soup

fig. If your voice is thick, it is lower than usual and not as even, usually because you are feeling a strong emotion:

Tony could hardly speak, and when he did his voice was thick with emotion.

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