Definition of "one at a time" []

• Individually, as opposed to collectively; slowly or methodically, figuratively. (adverb)

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• "Mrs Nightingale took things out one at a time and allowed Hetty to handle them."
• "She holds them one at a time flat against her chest and strokes them in rhythm, as she did the Bumblefish, top to bottom."
• "Then we scrubbed the cafeterie tables, swept the floor and polished the brasswork, and, on good mornings, went one at a time to the lavatory for a smoke."