(finance) The price which a seller or insurer might reasonably expect to fetch for goods, services or securities on the open market.

(finance) The price at which the buyer and seller are willing to do business.

(mathematics) Used to describe a mathematical entity, like a function, that takes values from the real numbers (as opposed to, for instance, from the complex numbers).

(chemistry) Any of a set of structural isomers that are related by a pericyclic reaction

(video games) The entertainment value obtained by playing a computer game more than once; replayability.

(anatomy) Any of the valves in the heart which prevent blood from moving in the wrong direction.

(aesthetics, psychology) A range of appearances, mannerisms, and/or behaviors of a humanoid figure that are subtly different from human and thereby cause feelings of discomfort, such as fear or revulsion.

(game theory) A real number determined for the player i as

(metadata) The set of allowed values for a data element.

It is often wise to refrain from seemingly brave speech or action.