Pocketknife

Noun

pock=et=knife

WORDNET DICTIONARY

pocketknife(n = noun.artifact) pocket knife - a knife with a blade that folds into the handle; suitable for carrying in the pocket; Array

has particulars: clasp knife, jackknife, penknife, flick-knife, flick knife, switchblade, switchblade knife

is a kind of knife

Pocketknife, n.

A knife with one or more blades, which fold into the handle so as to admit of being carried in the pocket. [1913 Webster]

For further exploring for "Pocketknife" in Webster Dictionary Online