Brightest

radiating or reflecting light; luminous; shining:
The bright coins shone in the gloom.
filled with light:
The room was bright with sunshine.
vivid or brilliant:
a bright red dress; bright passages of prose.
quick-witted or intelligent:
They gave promotions to bright employees.
clever or witty, as a remark:
Bright comments enlivened the conversation.
animated; lively; cheerful:
a bright and happy child; a bird’s bright song.
characterized by happiness or gladness:
All the world seems bright and gay.
favorable or auspicious:
bright prospects for the future.
radiant or splendid:
the bright pageantry of court.
illustrious or glorious, as an era:
the bright days of the Renaissance.
clear or translucent, as liquid:
The bright water trickled through his fingers.
having a glossy, glazed, or polished finish.
intensely clear and vibrant in tone or quality; clear and sharp in sound:
a bright singing voice.
brights.

the automobile or truck headlights used for driving at night or under conditions of decreased visibility.
the brighter level of intensity of these lights, usually deflected upward by switching on a bulb in the headlamp that strikes the lens at a different angle.

flue-cured, light-hued tobacco.
an artist’s paintbrush having short, square-edged bristles.
Archaic. brightness; splendor.
in a bright manner; brightly.
Contemporary Examples

Stars Mourn Director Tony Scott on Twitter The Daily Beast August 19, 2012
Finding Food Heaven on the Cali Coast Jane & Michael Stern August 16, 2014
The Protests in Moscow Will Not Spark a Russian Spring Owen Matthews December 13, 2011
For Soldiers Like Me, Cigarettes and War Are Inseparable Colby Buzzell February 2, 2009
The Goldilocks of Black Holes Matthew R. Francis August 23, 2014

Historical Examples

Vailima Letters Robert Louis Stevenson
Stanford Stories Charles K. Field
Myths and Marvels of Astronomy Richard A. Proctor
The Escape of Mr. Trimm Irvin S. Cobb
Sages and Heroes of the American Revolution L. Carroll Judson

adjective
emitting or reflecting much light; shining
(of colours) intense or vivid
full of promise: a bright future
full of animation; cheerful: a bright face
(informal) quick witted or clever: a bright child
magnificent; glorious: a bright victory
polished; glistening: a bright finish
(of the voice) distinct and clear
(of a liquid) translucent and clear: a circle of bright water
bright and early, very early in the morning
noun
a thin flat paintbrush with a straight sharp edge used for highlighting in oil painting
(poetic) brightness or splendour: the bright of his armour
adverb
brightly: the fire was burning bright
noun
John. 1811–89, British liberal statesman, economist, and advocate of free trade: with Richard Cobden he led the Anti-Corn-Law League (1838–46)
adj.

bright and early
bright idea
bright side