(idiomatic) To say or do something deliberately and unnecessarily malicious.

A utility knife suitable for cutting through carpet.

A type of knife used to cut cooked and prepared food, with a single moderately sharp edge.

plural of knife pleat

A type of general purpose kitchen knife used for food preparation, typically measuring eight inches by one and a half inches.

A chef's knife.

A small serrated kitchen knife designed to slice through tomatoes.

Legal restriction on the carrying and use of knives.

plural of knife-edge

A knife designed for use in hand-to-hand fighting in trenches, typically having a double-edged blade and a knuckleduster on the handle.