What do all chairs have in common that make a chair a chair?
A chair is a piece of furniture for sitting, consisting of a seat, a back, and sometimes arm rests, commonly for use by one person. Chairs also often have four legs to support the seat raised above the floor. Without back and arm rests it is called a stool. A chair for more than one person is a couch, sofa, settee, loveseat, recliner or bench. A separate footrest for a chair is known as an ottoman, hassock or pouffe. A chair mounted in a vehicle or in a theater is simply called a seat. Chairs as furniture typically can be moved. The back often does not extend all the way to the seat to allow for ventilation. Likewise, the back and sometimes the seat are made of porous materials or have holes drilled in them for decoration and ventilation. The back may extend above the height of the head. There may be separate headrests. Headrests for seats in vehicles are important for preventing whiplash injuries to the neck when the vehicle is involved in a rear-end collision.
You're kidding right....a seat...lol
You have asked about what is chair? Chair is which have a back and four legs made of wood, iron and aluminum etc. Second you have asked about seat. It is just like chair, bench and stool etc. where he or she can sit. Usually foam type of material is used on these chairs and benches so we say them seat. Tie chair is mostly used for children. We tie our children so they don’t fall or could not move and this is used only for children safety. This is the reason we call it tie chair. Beanbag chair and beanbag seat is same thing.
