dime

An American silver coin, in value the tenth of a dollar.

Dime
·noun A silver coin of the United States, of the value of ten cents; the tenth of a dollar. ...

Webster's Dictionary of the English Language
dime
(Fr. dixme or dime, tenth.) A silver coin of the United States, in value the tenth of a dollar, or t...

Dictionary of American Words And Phrases by John Russell Bartlett.