A painful contraction of a muscle which cannot be controlled.

That which confines or contracts.

A clamp for carpentry or masonry.

A piece of wood having a curve corresponding to that of the upper part of the instep, on which the upper leather of a boot is stretched to give it the requisite shape.

(intransitive) (of a muscle) To contract painfully and uncontrollably.

(transitive) To affect with cramps or spasms.

(transitive, figurative) To prohibit movement or expression of.

(transitive) To restrain to a specific physical position, as if with a cramp.

To fasten or hold with, or as if with, a cramp iron.

(by extension) To bind together; to unite.

To form on a cramp.