a person's actions, deeds, works, etc. / confessions and/or vows to follow Buddhist precepts / Short for 羯磨金剛 (katsuma kongō):

a surname

(Shingon Buddhism) karma: same as 羯磨(かつま) (katsuma) above

close friend, bosom buddy / crony, chum

(astrology) Capricorn

barbarian / (more specifically) the Jie people, a certain tribe that lived to the north of China in antiquity (see Chinese 羯 for details)

to polish / to grind / to brush (teeth)

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

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

a personal or private matter / (by extension) selfishness