noun
clincher
noun
1
A fact, event, or argument that settles something once and for all.
"His alibi was the clincher that got the case dismissed."
2
A type of bicycle tyre with a bead that hooks onto the wheel rim.
"Most road bikes use clincher tyres rather than tubulars."
How to Use Clincher
Learner’s notesIn plain EnglishThe final, decisive point that settles an argument or decision.
Common pairings
the real clincher
a clincher argument
Word Forms
clinchers plural
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His alibi was the _____ that got the case dismissed.
Etymology
From clinch + -er — literally "the thing that clinches" a matter.