(Tsugaru) because

半年: half a year; half-year

rice vinegar

black vinegar, especially produced from unpolished rice / a drink made with black vinegar as the main ingredient

balsamic vinegar

Citrus sudachi, a citrus fruit native to western Japan

(anatomy) epiglottis

会厭: epiglottis

someone imprisoned or prosecuted for what he himself do not consider evil or unjust (e.g. a prisoner of conscience, a prisoner of war, a performer of religious violence)

The hiragana syllable ゆ (yu). Its equivalent in katakana is ユ (yu). It is the thirty-seventh syllable in the gojūon order; its position is や行う段 (ya-gyō u-dan, “row ya, section u”).