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

1.
luna piena
the phase of the moon when it is fully illuminated as seen from Earth
:
•
The sky was bright under the full moon.
Il cielo era luminoso sotto la luna piena.
•
We watched the full moon rise over the mountains.
Abbiamo guardato la luna piena sorgere sulle montagne.