a surname

光二, 光仁, 光司, 光次, 光治, 公二, 剛治, 好治: a male given name / 孝志, 孝次, 孝治, 宏次, 幸二, 幸司, 幸治, 康司: a male given name / 廣二, 晃二, 晃司, 晃次, 浩二, 浩司, 浩嗣, 浩次: a male given name

公二郎, 厚治郎, 光治郎: a male given name

brain; brains / mind; intellect; understanding

(anatomy) the brain / (by extension, figuratively) one's brains, one's mental functioning

(archaic, anatomy) the brain / (archaic, by extension) the head

liver function

yesterday; last, past (day, week, month, year, etc.)

(logic) inductive reasoning

yesterday