noun:

• H; h

adjectival noun / noun:

• indecent; lewd; frisky; sexy - from 変態 - usually written using kana alone ➜ 変態【へんたい】

noun / ~する noun:

• sexual intercourse; copulation - usually written using kana alone - colloquialism

prefix:

• nth year in the Heisei era (1989.1.8-) - abbreviation ➜ 平成

noun:

• hydrogen (H) ［Ｈ］ - abbreviation

noun:

• h-index

noun:

• foobar-style name for a dummy variable - IT term

noun:

• horsepower; HP ➜ 馬力
• home page ［ＨＰ］ - IT term ➜ ホームページ
• half-pipe (i.e. in snowboarding) ［ＨＰ］ ➜ ハーフパイプ
• HP (i.e. a 'hit point' in a role-playing game) ［ＨＰ］
• harp ［ｈｐ］ ➜ ハープ

noun:

• Hypertext Transfer Protocol; http - IT term