one at a time
Definition from Wiktionary, the free dictionary
- Used other than as an idiom: see one, at a time.
- He ate the peas on his plate one at a time.
- One at a time, please! I can't hear you if you all talk at once.
- (Can we verify(+) this sense?) (figuratively, by extension) slowly or methodically.
- (individually): at the same time, collectively, en masse, in a group, jointly, simultaneously, together