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
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
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