(transitive, literally and figuratively) To raise to the same level or status; to improve so as to make as good as others.

The level of a body of water, especially when measured above a datum line. / The level of the water table below ground. / The waterline of a ship.

Simple enough to be appropriate to an inexperienced person, or to someone who does not need advanced features.

(ecology) A particular position occupied by a group of organisms in a food chain.

(obsolete) An old game in which seats are changed by the players.

(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.

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

(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

(chemistry) The energy level of the electrons (core electrons) occupying the completely filled shells under the valence shell.