close friend, bosom buddy / crony, chum

-cum-, concurrently, and; in addition

doing two or more things at the same time / holding two or more government offices at the same time

a male given name

for some time, for a while now

keeping several jobs / double-duty

(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

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