"chad" in the noun sense
a small piece of paper that is supposed to be removed when a hole is punched in a card or paper tape
2. Lake Chad, Chad
a lake in north central Africa fed by the Shari river
3. Chad, Republic of Chad, Tchad
a landlocked desert republic in north-central Africa was under French control until 1960
4. Chad, Chadic, Chadic language
a family of Afroasiatic tonal languages (mostly two tones) spoken in the regions west and south of Lake Chad in north central Africa
Source: WordNet® (An amazing lexical database of English)
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