cheek

1. (anatomy) The soft skin on each side of the face, below the eyes; the outer surface of the sides of the oral cavity.Examples: "There are some shrewd contents in yon same paper, / That steals the colours from Bassanio's cheek: / Some dear friend dead; else nothing in the world / Could turn so much the constitution / Of any constant man. What, worse and worse!— […]"Synonyms: wangcountableuncountable

2. (anatomy, informal, usually in the plural) The lower part of the buttocks that is often exposed beneath very brief underwear, swimwear, or extremely short shorts.Synonyms: arsecheek, asscheek, butt cheek, nether cheekcountableinformalplural-normallyuncountable

3. (figurative, informal, uncountable) Impudence.Examples: "You’ve got some cheek, asking me for money!"Synonyms: impertinence, impudence, brass neck, nerve, sass, chutzpahfigurativelyinformaluncountable

4. (biology, informal) One of the genae, flat areas on the sides of a trilobite's cephalon.countableinformaluncountable

5. One of the pieces of a machine, or of timber or stonework, that form corresponding sides or a similar pair.countableuncountable

6. (in the plural) The branches of a bridle bit.countablein-pluraluncountable