safekeeping, storage / custody

important, weighty / valuable

importance, weight / value

documents, papers

keep, maintain, store / have custody, have charge

a bank (financial institution)

(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