one by one
adverb
1 one by one
In succession:
— The prisoners came out one by one.
synonym: one at a time.
Roget 87: singly etc. adj.; alone, by itself, per se, only, apart, in the singular number, in the abstract; one by one, one at a time; simply; one and a half, ... show more
Roget 79: specially, especially, particularly etc. adj.; in particular, in propria persona [Lat.]; ad hominem [Lat.]; for my part. each, apiece, one by one, one at a time; severally, ... show more
2 one by one
One piece at a time.
synonym: by the piece.
3 one by one
Apart from others.
synonyms: individually, on an individual basis, separately, severally, singly.
Roget 44: separately etc. adj.; one by one, severally, apart; adrift, asunder, in twain; in the abstract, abstractedly.
Moby thesaurus: adrift, alone, apart, apart from, apiece, aside from, asunder, away from, by itself, each, each to each, in the abstract, in the singular, in twain, in two, independently, individually, once, particularly, per annum ... show more.
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