01 n. The quality or state of being bright; splendor; luster; brilliancy; clearness.
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1.
The quality or state of being bright; splendor; luster; brilliancy; clearness.“A sudden brightness in his face appear.” — Crabbe.
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2.
Acuteness (of the faculties); sharpness 9wit.“The brightness of his parts . . . distinguished him.” — Prior.
Syn.
Splendor; luster; radiance; resplendence; brilliancy; effulgence; glory; clearness.