Definition of cinch
(Entry 1 of 2)
1
: a strap that holds a saddle on a horse
2
: a tight grip
3a
: a thing done with ease
Getting reelected would be a cinch for him.
b
: a certainty to happen
it's a cinch he'll break the record
cinch
verb
cinched; cinching; cinches
Definition of cinch (Entry 2 of 2)
1a
: to put a cinch on
cinch a horse
b
: to fasten (something, such as a belt or strap) tightly
He cinched his belt tight.
2
: to make certain : assure
the goal that cinched the victory
: to tighten the cinch
—often used with up cinched up before mounting his horse
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Merriam-Webster unabridged
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Time Traveler for cinch
The first known use of cinch was in 1859
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