cinch

nouns

any undertaking that is easy to do
"marketing this product will be no picnic"
breeze, child's play, cinch, duck soup, picnic, piece of cake, pushover, snap, walkover
stable gear consisting of a band around a horse's belly that holds the saddle in place
cinch, girth
a form of all fours in which the players bid for the privilege of naming trumps
cinch
is a type of (narrower)
card games in which points are won for taking the high or low or jack or game
all fours, high-low-jack

verbs

tie a cinch around
"cinch horses"
cinch, girth
make sure of
cinch
is a type of (narrower)
be careful or certain to do something; make certain of something
"He verified that the valves were closed"; "See that the curtains are closed"; "control the quality of the product"
ascertain, assure, check, control, ensure, insure, see, see to it
get a grip on; get mastery of
cinch
is a type of (narrower)
have a firm understanding or knowledge of; be on top of
"Do you control these data?"
control, master