Clincher

['klɪn(t)ʃə] or ['klɪntʃɚ]

(noun.) a tool used to clinch nails or bolts or rivets.

(noun.) a point or fact or remark that settles something conclusively.

(noun.) an argument that is conclusive.

Editor: Vicky--From WordNet

(n.) One who, or that which, clinches; that which holds fast.

(n.) That which ends a dispute or controversy; a decisive argument.

Checked by Dolores

n. [1]. Cramp, clinch, hold-fast.[2]. Conclusive argument.

Checked by Letitia

That's a clincher,' said Mr. Weller, aside. Charles Dickens. The Pickwick Papers.

Typed by Betsy