one day

Definition of one day

  1. 1 :  at some time in the future One day, it'll happen. You'll see. People may one day be able to take vacations to the moon.

  2. 2 :  on a day in the past I went to her house one day and had lunch with her. One day, we had a terrible argument.

Word by Word Definitions

  1. :  the time of light between one night and the next

    :  daylight

    :  daytime


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an incorrigible rascal

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