verb
1.
Synonyms: introduce 6, insert, insinuate, intercalate, interject, interpolate, interpose, throw in
2.
Synonyms: inform 2, acquaint, advise, apprise, clue ( or clew), notify, post, tell, warn, wise (up)
FILL IN
Meaning of FILL IN in English
Merriam Webster. Collegiate thesaurus English vocabulary. Английский энциклопедический словарь тезаурус. 2003