eating the first product of the season make one live longer / a wonder lasts but nine days

(Shinto) the gods of calamity or misfortune

radish, Raphanus sativus, (specifically) small red radishes

(literally) know the other side and yourself, a hundred battles will not be perilous

one for all, all for one

kill two birds with one stone, do one task and finish two or more goals (literally, “one stone, two birds”)

(obsolete) being surprised twice / (obsolete) more specifically, describes the appearance of a woman who has a beautiful figure from behind but has an ugly face

(grammar) a verbal conjugation class in which the verb stem ends in -i and consists of four alternating bases: -i, -iru, -ire, and -iyo/-iro

Kyūjitai form of 三位一体 (“Trinity”)

(idiomatic, proverb) be quick on the uptake, understand the whole situation from just a few clues