To perform; to do; to conduct oneself; to carry out.

group, party, section

group, party / (military) section

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

activity, work, operation

to act, to operate, to work

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

a personal or private matter / (by extension) selfishness

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

personal, private / secret