From Longman Dictionary of Contemporary Englishtie in with something phrasal verb1 TIME/AT THE SAME TIMEto be similar to another idea, statement etc, so that they seem to be true SYN match Her description tied in with that of the other witness.2 (also be tied in with something) to be related in some way to something else How does all this tie in with their long-term aims?3 TIME/AT THE SAME TIMEto happen at the same time as something else The book was published to tie in with the TV series. → tie→ See Verb table
Examples from the Corpus
tie in with • This tied in with the position and colour of the spot when it first appeared.• Three backlist titles tie in with the television and are reissued in April.• But you haven't seen how all this ties in with their long-term aims.• This ties in with Ungerson's consideration of the complex motives of duty. 