一位:first rank / 一意: one thought, meaning / 一葦: one boat / 一尉: captain, lieutenant / 市井: the street (irregular reading)

one boat

(grammar) The monograde verb conjugation class, consisting of the two subclasses of 上(かみ)一(いち)段(だん)活(かつ)用(よう) (kami ichidan katsuyō, “upper-monograde conjugation”) and 下(しも)一(いち)段(だん)活(かつ)用(よう) (shimo ichidan katsuyō, “lower-monograde conjugation”)

(military) captain (Japanese Air Self-Defense Forces, Japanese Ground Self Defense Forces) / (military) lieutenant (senior grade) (Japanese Maritime Self-Defense Force)

Kyūjitai form of 壱 (number one)

one, 1 (used in legal documents)

Short for 壱岐国 (Iki no kuni, “Iki Province”).

one

a single gate / those who are related by kinship; a family or clan

one o'clock