Don't Confuse These: Sit & Seat
Sometimes, pronunciation matters, too. Let's look at “seat” and “sit”.
Which one of them is a noun and which one is a verb?
To sit is a verb.
You can sit on a chair.
The chair is your seat. It is something you can sit on. Seat is a noun.
What seat are you sitting on now?
Are you sitting on a chair, or in an armchair, or maybe you're on the floor?