There are 2 translations of amanecer in English:

amanecer1

verbo impersonal/impersonal verb

  • ¿a qué hora amanece? what time does it get light? estaba amaneciendo cuando partieron dawn was breaking o/or it was getting light when they left

verbo intransitivo/intransitive verb

(+ complemento/+ complement)
  • 1.1 [persona] amaneció con fiebre he woke up with a temperature amanecieron bailando morning found them still dancing, they were still dancing at dawn 1.2 (aparecer por la mañana) las calles amanecieron cubiertas de propaganda electoral in the morning the streets were littered with election pamphlets el día amaneció nublado the day dawned cloudy

verbo pronominal/pronominal verb (amanecerse)

  • (Chile) (México/Mexico) to stay up all night nos amanecimos estudiando we stayed up all night studying