Chad

名词 chad:

1. a small piece of paper that is supposed to be removed when a hole is punched in a card or paper tape
2. a lake in north central Africa; fed by the Shari river
   同义词：Lake Chad
3. a landlocked desert republic in north-central Africa; was under French control until 1960
   同义词：Republic of Chad, Tchad
4. a family of Afroasiatic tonal languages (mostly two tones) spoken in the regions west and south of Lake Chad in north central Africa
   同义词：Chadic, Chadic language