full moon
US /ˌfʊl ˈmuːn/
UK /ˌfʊl ˈmuːn/

1.
luna llena
the phase of the moon when it is fully illuminated as seen from Earth
:
•
The sky was bright under the full moon.
El cielo estaba brillante bajo la luna llena.
•
We watched the full moon rise over the mountains.
Vimos la luna llena salir sobre las montañas.