a surname The 4th most common surname in Japan.

surname, family name / (historical, obsolete) clan

a clan / (historical) a kind of hereditary title bestowed to clans in ancient Japan

(uncommon) surname, family name / (uncommon) clan

surname, family name / clan

surname / clan

(chiefly women's speech) first person singular pronoun: I, me

a personal or private matter / selfishness / privacy, secrecy / (women's speech, obsolete) a brother-in-law

personal, private / secret

(formal) first-person singular pronoun: I, me