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pocket knife

pocket knife

12 2.2
A small folding tool with a metal blade that fits into its handle and into a pocket
  • noun
  • /ˈpɑkɪt naɪf/
translation icon : navaja
  • Thank the heavens that my father-in-law carries a pocket knife and was able to slice through the seatbelt.
  • pocket knife to cut
  • taking a pocket knife
  • small pocket knife

I mean, are we talking like a sword, a pocket knife, something in between?

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Examples

  • I watched the two of them, leaning against the tree, picking at the bark with their pocket knives.

    Fiction book (1993)
  • Idly, I flicked my pocket knife open and started trimming a hangnail.

    Fiction book (2001)
  • I just took out my pocket knife...

  • I mean, I have a pocket knife!

  • When he finally left, he gave me his lucky pocket knife.

  • Do you have your pocket knife?

  • I have a pocket knife in my desk, is that okay?

  • Under the mountain ash stood a bearded character with a pocket knife.

    Fiction book (2000)
  • A good sharp pocket knife with a lock is safer to keep in the car than scissors.

    Blog text (27)
  • He always carries his pocket knife for emergencies while hiking.

Synonyms

knife
vspocket knife
  • NSFW
1.0

A tool with a sharp blade and handle used for cutting or as a weapon

is a small folding type made for pocket carrying rather than general blade use
pocketknife
vspocket knife
9 3.4

A small folding knife that you carry in your pocket

is the same but written as two separate words
penknife
vspocket knife
5 3.6

A small folding tool with a sharp blade for cutting small things

is designed to fold into the handle for convenient pocket carrying

How Portable

penknife
5 3.6
pocket knife
12 2.2
clasp knife
  • Archaic
1 6.4

Surface Forms

pocket knife singular
pocket knives plural

Morphology

pocket + knife

The meaning is directly compositional: 'pocket' (a small pouch) modifies 'knife' (a cutting tool) to indicate a knife intended to be carried in a pocket. This noun+noun compound follows a common, cross-linguistic naming pattern, so a B1 learner who knows both constituents will readily infer the intended meaning.

Etymology

Pocket knife comes from a simple picture: a small knife that folds and fits into a pocket so you can carry it safely. So today Pocket knife means 'a small folding knife' that you keep in your pocket.