Definitions
1.verbTo make bright or brighter in color."We brightened the room with a new coat of paint."
2.verbTo make illustrious, or more distinguished; to add luster or splendor to
3.verbTo make more cheerful and pleasant; to enliven"to brighten one's prospects; Having Mark around the place really brightens things up."
4.verbTo grow bright, or more bright in color; to clear up"The sun starts to brighten around this time of the year. The sky brightened as the storm moved on."
5.verbTo become brighter or more cheerful in mood"She brightened when I changed the subject."
6.verbTo make acute or witty; to enliven.
7.nounAn instance of becoming brighter.