cop

Concise Oxford English Dictionary © 2008 Oxford University Press:
cop1 informal

▶noun a police officer. ▶verb (cops, copping, copped)

• 1 catch or arrest (an offender).

• 2 incur (something unwelcome).

• 3 (cop off) Brit. have a sexual encounter.

• 4 (cop out) avoid doing something that one ought to do.

• 5 US obtain (an illegal drug).

• 6 N. Amer. strike (an attitude or pose).

• 7 (cop to) US accept or admit to.

– phrases
cop hold of Brit. take hold of.
cop it Brit.

• 1 get into trouble.

• 2 be killed.

cop a plea N. Amer. engage in plea bargaining.
not much cop Brit. not very good.

– origin C18 (as v.): perh. from obs. cap ‘arrest’, from OFr. caper ‘seize’, from L. capere.

Concise Oxford English Dictionary © 2008 Oxford University Press:
cop2

▶noun a conical mass of thread wound on to a spindle.

– origin C18: possibly from OE cop ‘summit, top’.