To make glad:
To emit light.
To join in an effort for a common cause:
To improve or refine (someone or someone's manners, appearance, etc.) as by removing crudeness or vulgarity
In a light manner; lightly.
To shed light on; illuminate.
To instill courage or life into.
To give an often deceptively attractive or improved appearance to.
(Now Rare) To brighten by rubbing or scouring; polish; burnish
In a clear manner; so as to be clear
To express praise or approval:
To burnish is to polish or shine something by rubbing.
To stimulate to action or creative effort; inspire
To radiate health or high spirits
(Dated) To use or employ to good purpose; to turn to profitable account.
To provide with a shade
(Intransitive) To become deeper
(Sports) To swerve from a straight course, especially in the direction of a slice.
To lessen the activity or force of something; weaken.
Encourage is defined as to give someone hope, confidence or support.
Find another word for brightens. In this page you can discover 29 synonyms, antonyms, idiomatic expressions, and related words for brightens, like: gladdens, lightens, shines, rallies, polishes, lights, lifts, irradiates, intensifies, inspirits and illuminates.