Definition of fill in in English:

fill in

Act as a substitute for someone when they are unable to do their job: my producer will have to have someone standing by to fill in for me
More example sentences
  • With Brooks absent because of a knock, the little-used Frost filled in at left-back.
  • In the absence of first-hand testimony, conjecture fills in.
  • Marky Ramone fills in on drums and former Black Flag member Dez Cadena slings guitar.
substitute, deputize, stand in, cover, take over, act as stand-in, take the place of
informal sub, step into someone's shoes/boots, pinch-hit
See parent entry: fill

Definition of fill in in:

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