Japanese

Adjective

うすい ‎(-i inflection, romaji usui)

1. 薄い: thin; weak; diluted

Noun

うすい ‎(romaji usui)

1. 雨水: rainwater

Proper noun

うすい ‎(romaji Usui)

1. 碓氷, 碓井, 碓日, 臼井: a place name
2. 臼井: a surname
3. 雨水: the second solar term