Noun

1. A position on a scale of intensity or amount or quality
2. A relative position or degree of value in a graded group
3. A specific identifiable position in a continuum or series or especially in a process
4. Height above ground
5. Indicator that establishes the horizontal when a bubble is centered in a tube of liquid
6. A flat surface at right angles to a plumb line
7. An abstract place usually conceived as having depth
8. A structure consisting of a room or set of rooms at a single position along a vertical scale

Verb

1. Aim at
2. Tear down so as to make flat with the ground
3. Make level or straight
4. Direct into a position for use
5. Talk frankly with; lay it on the line
6. Become level or even