n.
Pronunciation: ' ko ̇ in
Function: noun
Etymology: Middle English, from Anglo-French coing wedge, corner, from Latin cuneus wedge
Date: 14th century
1 archaic a : CORNER , CORNERSTONE , QUOIN b : WEDGE
2 a : a usually flat piece of metal issued by governmental authority as money b : metal money c : something resembling a coin especially in shape
3 : something used as if it were money (as in verbal or intellectual exchange) <perhaps wisecracks ⋯ are respectable literary coin in the U.S. ― Times Lit. Supp. > <would repay him with the full coin of his mind ― Ian Fleming>
4 : something having two different and usually opposing sides ― usually used in the phrase the other side of the coin
5 : MONEY <I'm in it for the coin ― Sinclair Lewis>