Third-person singular simple present indicative form of clench

To grip or hold fast. / To close tightly.

A tight grip. / (engineering) A seal that is applied to formed thin-wall bushings. / A local chapter of the Church of the SubGenius parody religion. / (archaic) A pun

present participle of clench

The act by which something (a fist, a jaw, etc.) is clenched.

Closed tightly.

simple past tense and past participle of clench

plural of clenching

Synonym of clinker-built

plural of clenched fist