A2noun2K

Knife

UK /["/naɪf/","/naɪvz/"]/US /["/naɪf/","/naɪvz/"]/

Definition

a sharp blade (= metal edge) with a handle, used for cutting or as a weapon

In simple words: A tool with a sharp blade used for cutting.

Examples

  • She used a knife to cut the vegetables more easily.
  • Be careful with that knife; it's very sharp!
  • He always carries a knife when he goes camping.
  • The chef sharpened his knife before starting to cook.
  • The knife slipped from her hands and fell on the floor.

Usage notes

Use 'knife' in both formal and informal contexts when referring to the cutting tool. Be careful not to confuse 'knife' with other utensils like 'fork' or 'spoon'.

Grammar pattern

standalone noun

Memory hint

Think of a 'knife' cutting through a cake — sharp and precise.

Collocations

  • blunt
  • dull
  • sharp
  • set
  • pick up
  • lay down
  • put down
  • cut
  • slice
  • clatter
  • blade
  • handle
  • block
  • with a/​the knife
  • the blade of a knife
  • the handle of a knife
  • go under the surgeon’s knife

Synonyms

  • blade
  • cutter
  • sword
  • dagger
  • paring knife

Antonyms

  • sword
  • blunt weapon

Common mistakes

  • Using 'knifes' as the plural form instead of 'knives'.
  • Confusing 'knife' with 'cutlery' — cutlery refers to a set of utensils.
  • Mixing up the usage with kitchen knives versus utility knives.