verb / noun
clinch
KLINCH/klɪntʃ/
To secure something with a firm fastening or grip.
The two people clinch their hands together in a firm handshake.

Etymology
The idea of holding fast became concrete in bending back a driven nail so it could not come loose. Clinching a matter similarly means securing it with a decisive final act.
In context
So we got 7 hours to take a mile and a half uh off Washington uh to clinch first place.
More examples
- The final goal clinched their victory.
- The boxers held each other in a tight clinch.
- She clinched the deal with one convincing demonstration.
Forms
clinch · clinches · clinched · clinching
Similar words
- secure
- A general term for making certain, while clinch suggests decisive fastening or resolution.