Meaning of TIE-UP in English

TIE-UP

■ noun

1》 a link or connection, especially one between commercial companies.

↘ US a telecommunications link or network.

2》 N. Amer. a building where cattle are tied up for the night.

↘a place for mooring a boat.

3》 N. Amer. a traffic hold-up.

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.