Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

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fill in

fill in

 
See:
fill
part of speech: phrase
definition 1: to provide with requested information.
Fill in the blanks.
synonyms:
complete
similar words:
advise, clue in, inform, tell
definition 2: to temporarily replace; be a substitute (often fol. by for).
Can you fill in for me at work?
synonyms:
sub, substitute
similar words:
double, replace, supply