noun fi·do \ˈfī-(ˌ)dō\
plural fidos

Definition of FIDO

:  a coin having a minting error

Origin of FIDO

freaks + irregulars + defects + oddities
First Known Use: 1967


Next Word in the Dictionary: fiduciaPrevious Word in the Dictionary: fidleyAll Words Near: fido
March 26, 2015
verdigris Hear it
A green deposit formed on some metals
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears