on the fly

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Alternative forms[edit]


on the fly ‎(not comparable)

  1. (baseball, of the ball) Without a bounce.
    Jones caught the ball on the fly
  2. (idiomatic) Spontaneously or extemporaneously; done as one goes, or during another activity.
    The software program has a table of values for some results, but calculates others on the fly.

Derived terms[edit]