kapesní nůž znamená v angličtina

penknife [penknives]▼(knife for cutting the points of quill feathers or reeds)
noun
[UK: ˈpen naɪf] [US: ˈpen naɪf]

pocketknife [pocketknives]▼noun
[UK: ˈpɒkɪtnaɪf] [US: ˈpɒkɪtnaɪf]