n. Knowledge; acquaintance; ascertainment; power or means of ascertaining.Having perception or knowledge; intelligent; instructed.Conscious; intentional.Shrewd; sharp; smart; in a special sense, having or simulating the appearance of possessing information which one is unwilling to communicate.Expressive of knowledge or cunning: as, a knowing look.Smart-looking; stylish.Synonyms Astute, Sage, etc. See astute. (See also sagacious.)