noun a small piece of paper that is supposed to be removed when a hole is punched in a card or paper tape.
noun a lake in north central Africa.
— synonyms: Lake_Chad
noun a landlocked desert republic in north-central Africa.
— synonyms: Republic_of_Chad, Tchad
noun a family of Afroasiatic tonal languages (mostly two tones) spoken in the regions west and south of Lake Chad in north central Africa.
— synonyms: Chadic, Chadic_language