[d??m]
¦ noun N. Amer. a ten-cent coin.
?informal a small amount of money.
Phrases
a dime a dozen informal very common and of little value.
drop a (or the) dime on informal inform on.
on a dime informal within a small area or short distance.
Origin
ME (orig. denoting a tithe or tenth part): from OFr. disme, from L. decima pars 'tenth part'.