deal in

verb7

1. •
   To trade (buy and sell) a named commodity.
2. •
   To deal cards to someone entering a game; to enter someone into a game by dealing cards to that person.
3. •
   To give (someone) a share or portion of something; to include (someone) in a plan or scheme.

   • We can deal you in on the robbery.
4. •
   To have an interest in something.
5. •
   To accept (something or a piece of information) as a basis for a decision.
6. •
   To discard another player's winning tile, causing them to declare a win.

   • When your starting hand is clearly behind, one of the smartest things you can do is start stocking up on potential safe tiles. That way, you're less likely to deal in when the pressure hits. — 2026
7. •
   To be a winning tile that an opponent declares a win off of.

   • Pushing (oshi) means discarding tiles that might deal in, all for the sake of maximizing your win. — 2026