Definition that contains spirit level
- carpenter's level a straight bar of light metal with a spirit level in it
- dumpy level a surveyor's level having a short telescope fixed to a horizontally rotating table and a spirit level
- surveyor's level surveying instrument consisting basically of a small telescope with an attached spirit level rotating around a vertical axis; for measuring relative heights of land
- abney level a surveying instrument consisting of a spirit level and a sighting tube; used to measure the angle of inclination of a line from the observer to the target