tie in
US /taɪ ɪn/
UK /taɪ ɪn/

1.
correspondre à, se raccorder à
to connect or relate to something else
:
•
His explanation didn't really tie in with the facts.
Son explication ne correspondait pas vraiment aux faits.
•
How does this new information tie in with what we already know?
Comment cette nouvelle information se raccorde-t-elle à ce que nous savons déjà ?