a device for establishing a horizontal line or plane by means of a bubble in a liquid that shows adjustment to the horizontal by movement to the center of a slightly bowed glass tube
measurement of the difference of altitude of two points by means of a level
approximately horizontal line or surface taken as an index of altitude
practically horizontal surface or area (as of land)
to make even [v LEVELED, LEVELING, LEVELLED, LEVELLING, LEVELS]
position in a scale or rank (as of achievement, significance, or value) funded at the national level the job appeals to me on many levels
line or surface that cuts perpendicularly all plumb lines that it meets and hence would everywhere coincide with a surface of still water
horizontal passage in a mine intended for regular working and transportation
concentration of a constituent especially of a body fluid (as blood)
to make even (smooth and level) [v LEVELED or LEVELLED, LEVELLING or LEVELING, LEVELS]