the first light of day
"we got up before dawn"
"they talked until morning"
an atmospheric phenomenon consisting of bands of light caused by charged solar particles following the earth's magnetic lines of force
"The aurora danced across the night sky as vibrant bands of green and purple light created by charged solar particles interacting with Earth's magnetic field."
(Roman mythology) goddess of the dawn; counterpart of Greek Eos
"In Roman mythology, Aurora is the goddess of the dawn and serves as the counterpart to the Greek deity Eos."
An atmospheric phenomenon created by charged particles from the sun striking the upper atmosphere, creating coloured lights in the sky. It is usually named australis or borealis based on whether it is in the Southern or Northern Hemisphere respectively.
"The aurora borealis painted the night sky with vibrant greens and purples as solar particles collided with Earth's upper atmosphere."
In plain English: An aurora is a colorful light show that happens high up in the sky when particles from space hit Earth's atmosphere.
"The travelers were amazed to see the green aurora dancing across the night sky above them."
Usage: Use aurora to refer specifically to natural light displays like the Northern or Southern Lights caused by solar activity. Do not use it as a synonym for general dawn or sunrise; instead, choose words like "dawn" when describing morning daylight without this specific atmospheric phenomenon.
Roman goddess of the dawn; equivalent of the Greek Eos. Sister of Luna and Sol.
"In Roman mythology, Aurora is revered as the goddess who brings light to the world each morning."
The word aurora comes directly from the Latin term aurōra, which means dawn. It entered English as a doublet related to the Greek goddess Eos, who also personified the morning sky.