cinch vs picnic

cinch and picnic both are nouns.

Word	Noun	Adjective	Verb	Adverb
cinch	Yes	No	Yes	No
picnic	Yes	No	Yes	No

As nouns, cinch and picnic are synonyms defined as:

Other synonyms of cinch include breeze, child's play, duck soup, piece of cake, pushover, snap, walkover.

cinch (noun)	picnic (noun)
a form of all fours in which the players bid for the privilege of naming trumps	any undertaking that is easy to do
any undertaking that is easy to do	any informal meal eaten outside or on an excursion
stable gear consisting of a band around a horse's belly that holds the saddle in place	a day devoted to an outdoor social gathering