The regard that something is held to deserve; the importance, worth, or usefulness of something. A person's principles or standards of behavior; one's judgment of what is important in life. The numerical amount denoted by an algebraic term; a magnitude, quantity, or number. The relative duration of the sound signified by a note. The meaning of a word or other linguistic unit. The relative degree of lightness or darkness of a particular color. Estimate the monetary worth of (something). Consider (someone or something) to be important or beneficial; have a high opinion of.