Definitions of staircase

1. a way of access consisting of a set of steps

2. A flight of steps in a house, with railings, etc. Also, stairway.

3. A case or flight of stairs with balusters, etc.

4. A set of stairs. stairway.

5. An enclosed series of steps leading from one part of a building to another; below- stairs, in the basement or lower part of a house; up- stairs, in the higher or better rooms; the bedrooms.