■ adjective
1》 with opposite sides or surfaces relatively far apart.
↘(of a garment or similar item) made of heavy material.
2》 made up of a large number of things or people close together.
↘( ~ with ) densely filled or covered with.
↘(of the air or atmosphere, or a substance in the air) opaque, heavy, or dense: ~ fog.
3》 (of a liquid or a semi-liquid substance) relatively firm in consistency; not flowing freely.
4》 informal of low intelligence; stupid.
5》 (of a voice) hoarse or husky.
↘(of an accent) very marked and difficult to understand.
6》 informal having a very close, friendly relationship.
■ noun ( the ~ ) the middle or the busiest part of something: in the ~ of battle.
■ adverb ~ly: bread spread ~ with butter.
Phrases
be ~ on the ground see ground 1 .
a bit ~ Brit. informal unfair or unreasonable.
give someone (or get ) a ~ ear Brit. informal punish someone (or be punished) with a blow on the ear.
have a ~ skin see skin .
~ and fast rapidly and in great numbers.
( as ) ~ as thieves informal very close or friendly.
( as ) ~ as two (short) planks (or as a plank) Brit. informal very stupid.
through ~ and thin under all circumstances, no matter how difficult.
Derivatives
~ish adjective
~ly adverb
Origin
OE thicce , of Gmc origin.