(mathematical analysis) The set of values x for which a real-valued function f(x) is equal to a given constant.

(business) To establish a baseline of mutual understanding

(business) An event consisting of level setting / (business) A state of mutual understanding among parties

An act of leaking, or something that leaks. / The amount lost due to a leak. / An undesirable flow of electric current through insulation. / Loss of retail stock, especially due to theft.

Taking place or existing at a high level, altitude or elevation. / Of or pertaining to a person of a high social position or high rank within a hierarchy or organization. / Consisting of such people.

The postal facility that deals with mail that cannot be delivered.

(physics) Any of the discrete stable energies that a quantum mechanical system (such as the electrons of an atom) can have. / Used other than figuratively or idiomatically: see energy, level.

(dated) Made of lead. / Pertaining to or resembling lead; grey, heavy, sluggish. / Dull; darkened with overcast.

(transitive, intransitive) To make or become dull or overcast.

Alternative spelling of peg-leg