cinch vs doddle

cinch and doddle both are nouns.

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

As nouns, doddle is a hyponym of cinch; that is, doddle is a word with a more specific, narrower meaning than cinch:

cinch (noun)	doddle (noun)
a form of all fours in which the players bid for the privilege of naming trumps	an easy task
any undertaking that is easy to do
stable gear consisting of a band around a horse's belly that holds the saddle in place