dime 
/ˈdaɪm/ noun
plural dimes /ˈdaɪm/ noun [count] : a U.S. or Canadian coin that is worth 10 cents
a dime a dozen
US, informal : too common to be valuable or interesting
▪ Beautiful actresses are a dime a dozen.
▪ Beautiful actresses are a dime a dozen.
on a dime
informal 1 : very quickly
▪ My new car can stop on a dime. 2 : in a very small space
▪ turn on a dime — see also five-and-dime, nickel-and-dime
▪ My new car can stop on a dime.
▪ turn on a dime — see also five-and-dime, nickel-and-dime
