/ Dictionary / Index L lighten: Meaning and Definition of Find definitions for: light•en Pronunciation: (līt'n), [key] — v.i. to become lighter or less dark; brighten: The sky lightened after the storm. to brighten or light up, as the eyes or features: Her face lightened when she heard the good news. to flash as or like lightning (often used impersonally with it as subject): It thundered and lightened for hours. to shine, gleam, or be bright: steel blades lightening in the sun. —v.t. to give light to; illuminate: A full moon lightened the road. to brighten (the eyes, features, etc.): A large smile lightened his face. to make lighter or less dark: Add white to lighten the paint. enlighten. to flash or emit like lightning (usually fol. by out, forth, or down): eyes that lightened forth implacable hatred. light•en Pronunciation: (līt'n), [key] — v.t. to make lighter in weight: to lighten the load on a truck. to lessen the load of or upon: to lighten a cargo ship. to make less burdensome or oppressive; alleviate; mitigate: to lighten taxes; to lighten someone's cares. to cheer or gladden: Such news lightens my heart. —v.i. to become less severe, stringent, or harsh; ease up: Border inspections have lightened recently. to become less heavy, cumbersome, burdensome, oppressive, etc.: His worries seem to have lightened somewhat. to become less gloomy; perk up: People's spirits usually lighten when spring arrives. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: lighten (Thesaurus) light-emitting diode lightening Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language