vendre

/vɑ̃dʁ/
1.
verbInf3rdPres

to sell (offer or exchange something for money)

Je vais vendre ma voiture sur Le Bon Coin.

I'm going to sell my car on Le Bon Coin.

2.
verbInf3rdPres

to betray / to sell someone out (to inform on or betray someone for personal gain or to avoid trouble)

Il a fini par vendre ses amis à la police pour s'en sortir.

He ended up selling out his friends to the police to get away with it.