A spirit level in which a glass-covered box is used instead of a tube.

In a level-headed manner.

(mining) A level or drainage gallery which has a vertical shaft at each end, and acts as an inverted siphon.

Any of several internationally agreed standard altitudes that are based on atmospheric pressure rather than on true height

(economics) An index of the average market price of selected goods weighted according to certain criteria.

The relative difficulty of completing a task or objective. / (video games) A variable setting in a video game determining how challenging it is to play.

(statistics) A measure of how likely it is to draw a false conclusion in a statistical test, when the results are really just random variations.

In a level-handed manner.

The quality of being level-handed.

Even-handed; fair and balanced. / (employment, obsolete) With work and earnings shared equally among all workers. / Even; all parties having the same amount.