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| bright·en [ brt'n ] (past and past participle bright·ened, present participle bright·en·ing, 3rd person present singular bright·ens) |
verb |
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| Definition: |
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1. intransitive verb look happy: to become enthusiastic, lively, or happy
 She brightened visibly at the suggestion.
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2. transitive verb add interest: to add color or interest to something
 Their visit brightened the day for us.
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3. intransitive verb meteorology become less overcast: to become less dull or rainy
 It's going to brighten this afternoon.
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4. transitive and intransitive verb illuminate or get lighter: to increase the amount of light emitted or reflected by something, or be filled with an increasing amount of light
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5. transitive and intransitive verb make or become more promising: to seem more promising, or make something seem more promising
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