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one by one

idiom

: separately in a series : one at a time : first one and then another one, etc.
I solved the problems one by one.
The performers took the stage one by one.

Examples of one by one in a Sentence

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The rest of the book is spent expanding on these maxims one by one, in her colloquial, easy style, with references to classic psychological studies, her own research and her own experiences. Lamorna Ash, The Dial, 25 Nov. 2025 The quick chore then turns to a 10-minute task as Kasey hands Nala clothing one by one. Liz O'Connell, MSNBC Newsweek, 25 Nov. 2025 Bernshteyn spent his years in graduate school studying such coloring problems, shelving them one by one. Joseph Howlett, Quanta Magazine, 21 Nov. 2025 Three of Bowman’s friends — Matt Anthony, Matt Schoenecker and Val Creus — vanished into Rattlesnake Falls, one by one, the second and third man trying to save the first. Susan Young, PEOPLE, 20 Nov. 2025 See All Example Sentences for one by one

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“One by one.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/one%20by%20one. Accessed 29 Nov. 2025.

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