1. (noun)pith hat, pith helmet, sun helmet, topee, topi a lightweight hat worn in tropical countries for protection from the sun Synonyms: pith hat, pithhelmet, sassaby, topi, sun helmet, topee
2. (noun)sassaby, topi, Damaliscus lunatus a large South African antelope; considered the swiftest hoofed mammal Synonyms: topi, pithhelmet, sassaby, pith hat, sun helmet, topee