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

1.
pleine lune
the phase of the moon when it is fully illuminated as seen from Earth
:
•
The sky was bright under the full moon.
Le ciel était lumineux sous la pleine lune.
•
We watched the full moon rise over the mountains.
Nous avons regardé la pleine lune se lever sur les montagnes.