Language: Old English
Origin: thicce


1 adjective
thick1 S2 W2 comparative thicker, superlative thickest

not thin

if something is thick, there is a large distance or a larger distance than usual between its two opposite surfaces or sides [≠ thin]:
a thick oak door
a thick slice of homemade bread
He was wearing thick glasses.
short thick fingers
thick wool socks (=socks that are heavy and warm)
If you want a thicker blanket, there are more here in the closet.
The meat is done when the thickest part turns from pink to white.
thick with
The furniture was thick with dust (=there was thick dust on the furniture).


measuring a particular distance between two opposite sides or surfaces of something
3 feet/1cm/two inches etc thick
The walls are about two meters thick.
How thick should the glass in the tank be?
This layer of brain tissue is no thicker than 2 mm.
see usage note wide1

trees/bushes etc

HBP growing very close together or having a lot of leaves [= dense]:
birds hiding in the thick undergrowth
thick with
The walls were thick with ivy.

smoke/cloud etc

filling the air, and difficult to see through or breathe in [= dense]:
thick fog
thick with
The air was thick with cigarette smoke.


almost solid, and therefore flowing very slowly, or not flowing at all:
For a thicker gravy, add more flour.
The paint is too thick.


having a lot of hair or fur:
She ran her fingers through her thick brown hair.


British English informal a thick person is stupid:
He's a nice guy, but he's a bit thick.


a) if someone has a thick accent, the way they speak shows clearly which particular place or part of a country they come from
a thick German/Yorkshire etc accent
Andre speaks English with a thick Russian accent.
b) if someone's voice is thick, it is not as clear or high as usual, for example because they are upset:
Bill's voice was thick and gruff.
thick with
Her voice was thick with emotion.

large amount

especially written containing a lot of people or things:
The cod were so thick in the water that they caught thousands very quickly.
thick with
The roads were thick with holiday traffic.

be thick on the ground

British English to be present or available in large amounts or numbers [≠ thin on the ground]:
Cheap houses aren't as thick on the ground as they used to be.

have a thick skin

to not care if people criticize you or do not like you thick-skinned


be (as) thick as thieves

if two people are as thick as thieves, they are very friendly with each other and seem to share a lot of secrets, making other people think they are hiding or planning something:
Lately Nick and Lou have been as thick as thieves.

give somebody a thick ear/get a thick ear

British English spoken to hit someone or be hit on the head, as a punishment:
Any more cheek from you and you'll get a thick ear.

be thick with somebody

old-fashioned to be very friendly with someone

(it's) a bit thick

British English old-fashioned used to say something is a little unfair or annoying

wide, thick, broad
Wide is used to talk about the distance across something such as a road or river. It is also used to talk about the distance from one side to the other of an object a doorway two metres wideThick is usually used to talk about the distance between the two largest surfaces of an object The steel doors are four inches thick.Broad can often be used instead of wide, but it is slightly literary broad, graceful avenuesBroad is always used with shoulders and back a big man with broad (NOT wide) shouldersWide is used with nouns such as range, variety, and choice to say that something includes a lot of different things.Broad is used with nouns such as outline, picture, and description to say that a description is general rather than specific.See also wide

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