Meaning of TIE IN in English

TIE IN

verb Date: 1793 transitive verb to bring into connection with something relevant: as, to make the final connection of , to coordinate in such a manner as to produce balance and unity , to use as a tie-in especially in advertising, intransitive verb to become tied in

Merriam Webster. Explanatory English dictionary Merriam Webster.      Толковый словарь английского языка Мерриам-Уэбстер.