A product made to go with a film, TV show, or game that is coming out — the toy, the book of the story, the T-shirt, the special cup at the burger shop. The point of a tie-in is not that it exists on its own but that it borrows the attention the big thing is already getting, and sells on the back of it.

made to go with為了搭配 that is coming out即將推出的 a film, TV show, or game電影、電視節目或遊戲 A product而做的商品—— the toy玩具、 the book of the story故事書、 the T-shirtT恤、 at the burger shop漢堡店裡的 the special cup特別杯子。 The point of a tie-intie-in 的重點 is not that不在於 it exists on its own它自己單獨存在， but that而在於 it它 borrows借用 the big thing那個大東西 is already getting已經在得到 the attention的注意力， and sells on the back of it然後靠在它背上賣。

It is a noun, written with a hyphen, and it very often sits in front of another noun: a tie-in novel, a tie-in game, a tie-in deal.

It is a noun它是名詞， written with a hyphen寫的時候帶連字號， and it very often而且它很常 sits坐在 another noun另一個名詞 in front of前面： a tie-in novel搭配電影的小說、 a tie-in game搭配的遊戲、 a tie-in deal搭配的合作案。

It also has a second, looser use meaning simply a connection between two things — "there's a tie-in with the case we saw last year" — but the film-and-toy sense is far more common. Note that the two-word verb "tie in" (no hyphen) is different: it means to fit or connect with something, as in "that ties in with what she told us".

It also has它也有 a second, looser use第二個、比較鬆的用法， meaning simply意思就只是 between two things兩件事之間 a connection的關聯—— 'there's a tie-in with the case we saw last year'這跟我們去年看到的那個案子有關聯—— but但 the film-and-toy sense電影配玩具的那個意思 is far more common常見得多。 Note that注意 the two-word verb 'tie in'兩個字的動詞 tie in (no hyphen)（沒有連字號） is different是不一樣的： it means它的意思是 with something跟某件事 to fit or connect吻合、連得起來， as in像 'that ties in with what she told us'那跟她告訴我們的話對得起來。