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 give or write down information.
I have to fill in my friend on what happened at school while he was absent.On the test, you must fill in the blanks.
synonyms:
complete
similar words:
advise, clue in, inform, tell
definition 2: to be a substitute (often followed by "for").
Can you fill in for me at work?
synonyms:
sub, substitute
similar words:
double, replace