Alternative form of Y level

Alternative form of grunt-level

Alternative form of bilevel

Alternative form of bilevel

Alternative form of levelling staff

Abbreviation of testosterone level. (as a measure of a man's health)

Alternative form of next-level

(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.

(UK, historical, education) A public examination taken by the most able A-level students and typically used to support university applications, particularly to Oxbridge.

Ground level.