Part of speech:
A small knife with blades or a blade that can fold into the handle when not in use.
A large pocketknife, esp. one with blades which, when open, can be secured by a catch
(Idiomatic, intransitive) To bend over at the waist.
A bend in a layer of rock or in another planar feature such as foliation or the cleavage of a mineral. Folds occur as the result of deformation, usually associated with plate-tectonic forces.
To pull, break, or snap by turning:
Crash means to violently smash or break or to make a loud and sudden noise.
The definition of a knife is a tool with a sharp blade and a handle used for cutting or stabbing.
(Naut.) To attach; fasten
Find another word for jackknife. In this page you can discover 14 synonyms, antonyms, idiomatic expressions, and related words for jackknife, like: pocketknife, clasp-knife, case-knife, Barlow knife, double-up, double-over, fold, fold-up, twist, crash and be wrecked.