error (difference between a measured or calculated value and a true one)

union, alliance, combination

Godzilla

ground soybean juice, used for making tofu etc.

repentance / penitence / remorse / contrition

Old English

(archaic) an old name for Taiwan / A city in Hyōgo Prefecture, Japan. / (theater) the title of a Noh play

five o'clock

Kyūjitai form of 暗号 (“code; cipher”)

(grammar) a verbal conjugation class consisting of five alternating bases: -a, -i, -u, -e, and -o