This is the 4677th most frequent Spanish word.
cielos
"Heavens" or "skies."
Here, 'cielos' is used as an interjection expressing surprise or frustration, similar to 'heavens' in English.
¡Cielos! Olvidé traer mi llave.
Heavens! I forgot to bring my key.
In this context, 'cielos' means 'skies,' referring to the visible atmosphere or heavens during nighttime.
Observamos los cielos estrellados durante la noche.
We observed the starry skies during the night.
In this sentence, 'cielos' refers to the plural form of 'sky,' emphasizing favorable weather conditions.