"cinch" in the noun sense
1. cinch, breeze, picnic, snap, duck soup, child's play, pushover, walkover, piece of cake
any undertaking that is easy to do
"marketing this product will be no picnic"
2. cinch, girth
stable gear consisting of a band around a horse's belly that holds the saddle in place
a form of all fours in which the players bid for the privilege of naming trumps
"cinch" in the verb sense
1. cinch, girth
tie a cinch around
make sure of
get a grip on get mastery of
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License