There are 2 main definitions of sunrise in English:

sunrise1

Syllabification: sun·rise
Pronunciation: /ˈsənˌrīz
 
/

noun

[in singular]
1The time in the morning when the sun appears or full daylight arrives: an hour before sunrise
More example sentences
  • He picks from sunrise to sundown for an old Okie family.
  • Last year I performed during Ramadan, an Islamic month when Muslims fast from sunrise to sunset to cleanse the system and restore inner energy.
  • Depending on the context, the day was considered to begin at either midnight, at noon, at sunset, or at sunrise.
Synonyms
dawn, crack of dawn, daybreak, break of day, sun-up, first light, (early) morning, cock crow
literary aurora
1.1The colors and light visible in the sky on an occasion of the sun’s first appearance in the morning, considered as a view or spectacle: a spectacular sunrise over the summit of the mountain
More example sentences
  • A three-hour walk up to Mt Sinai's summit offers spectacular sunrise views.
  • People climb for the sunrise and the great view from the summit - and to have been on the top of Mount Fuji once in their life.
  • He has the lights off, and the only source of light is the sunrise behind her.

Definition of sunrise in: