book on

English

Verb

book on (third-person singular simple present books on, present participle booking on, simple past and past participle booked on)

  1. (intransitive) To register (for duty).
    • 2023 August 23, “Network News: RAIB cites driver fatigue as factor in 28mph collision”, in RAIL, number 990, page 12:
      Having woken at 0900 the previous morning, he had not slept during the day and had already been awake for 11 hours when he booked on.
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