clench
To grip or hold fast.
To close tightly.
(bend and hammer a nail)
(make certain, finalize)
A tight grip.
(the act of bending and hammering the point of a nail so it cannot be removed)
(engineering) A seal that is applied to formed thin-wall bushings.
A local chapter of the {{w|Church of the SubGenius}} parody religion.
(obsolete) A pun.