1. n. (now usually un) Large movable item(s), usually in a room, which enhance(s) the room's characteristics, functionally or decoratively.
The woman does not even have one stick of furniture moved in yet.
How much furniture did they leave behind?
A chair is furniture. Sofas are also furniture.
They bought a couple of pieces of furniture.
2. n. The harness, trappings etc. of a horse, hawk, or other animal.
3. n. Fittings, such as handles, of a door, coffin, or other wooden item.
4. n. (firearms) The stock and forearm of a weapon.
5. n. (printing, historical) The pieces of wood or metal put round pages of type to make proper margins and fill the spaces between the pages and the chase.
