井手: (archaic) A dam used to divert water for irrigation.

井手: a surname

a surname

to use one's head

use one thing for many purposes / work someone hard

a letter or character (symbol for a sound or a word) / (linguistics) script, writing system / (specific to Japanese) a written mora, a kana / writing in general, written words

Job's tears (Coix lacryma-jobi)

(less polite) frequently asked questions; FAQ

intonation, accent, modulation, inflection

desire, greed