ostrich

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. a person who refuses to face reality or recognize the truth (a reference to the popular notion that the ostrich hides from danger by burying its head in the sand)
• Hypernyms:
person, individual, someone, somebody, mortal, soul
2. fast-running African flightless bird with two-toed feet;
largest living bird
• Syn:
Struthio camelus
• Hypernyms:
ratite, ratite bird, flightless bird
• Member Holonyms:
Struthio, genus Struthio