Alternative form of bilevel

Ground level.

plural of T level

(Internet slang) An interest or specialized knowledge in an subject seen as uncool, especially related to video games and otaku culture.

(aviation) The lowest flight level above the transition altitude; depends on the transition altitude and the measured or calculated sea-level atmospheric pressure. The flight level at which a descending aircraft's barometric altimeters are reset from a constant setting of 1013.25 hectopascals to the setting corresponding to the actual measured or calculated atmospheric pressure at mean sea level.

Third-person singular simple present indicative form of level off

A level at the height of one's eyes.

plural of eye level

(linguistics) the reduction of dialectal diversity within a language due to the propagation of a single prestige variety

simple past tense and past participle of level off