picnic vs cinch

picnic and cinch both are nouns.

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

As nouns, picnic and cinch are synonyms defined as:

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

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