a chair is what you use to start a fight or a riot, always work

The single chair in your room you never use but your clothes love to sit in for several months and get taller until your mom yells at you to clean.

a seat you sit on

an object that is placed in a parking spot in front of one's house in Pittsburgh to save your parking place

Its a fucking chair what do you expect?

Gives support to your ass

Something in which you sit on

Sometimes comfy sometimes they feel like your getting stabbed in the ass