Nghĩa

• Noun

  1. An insect in the order Orthoptera, especially family Gryllidae, that makes a chirping sound by rubbing its wing casings against combs on its hind legs.
  2. (slang) An insect in the order Orthoptera, especially family Gryllidae, that makes a chirping sound by rubbing its wing casings against combs on its hind legs.
  3. A signalling device used by soldiers in hostile territory to identify themselves to a friendly in low visibility conditions.
  4. (slang) An aural warning sound consisting of a continuously-repeating chime, designed to be difficult for pilots to ignore.

• Verb