| Main Entry: | |
| Part of Speech: | noun |
| Definition: | headgear |
| Synonyms: | armor, busby, crash helmet, hard hat, hat, head protector, kepi, safety helmet, shako |
| Main Entry: | headdress |
| Part of Speech: | noun |
| Definition: | accessory for head |
| Synonyms: | bandore, biretta, bonnet, busby, cap, coiffure, coronet, crown, hat, helmet, hood, miter, tiara, toque, turban |
| Main Entry: | hard hat |
| Part of Speech: | noun |
| Definition: | protective headgear |
| Synonyms: | construction hat, construction helmet, crash helmet, hardhat, helmet, safety hat |