# tie-in

> English word · Noun

## Definitions
1. Something that is related or connected to another thing.
2. An authorized product based on a media property, such as a film or video game, by way of cross-promotion.
3. An association or connection between things.

## Etymology
From tie + in.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/tie-in