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

intelligence; reason; the ability to learn and reason; the capacity for knowledge and understanding.

Earth, firm ground

(grammar) a verbal conjugation class in which the stem ends in -e:

a house or building / living under a single roof