Usage Contextslangcasual

Note: May be unclear outside social media audiences.

Cap

"Cap" in Japanese

かさ

kasa

(top part of a mushroom)

キャップ

kyappu

(head covering)

キャップ

kyappu

(protective cover or seal)

帽子

bōshi

(head covering)

蓋

futa

(protective cover or seal)

被せ

kabuse

(crown covering a tooth)

頂上

chōjō

(summit of a mountain)

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.