New Year's Eve
US /ˌnuː jɪrz ˈiːv/
UK /ˌnuː jɪrz ˈiːv/

1.
réveillon du Nouvel An
the last day of the year, December 31, which is celebrated with parties and other festivities leading up to midnight and the start of the new year
:
•
We're planning a big party for New Year's Eve.
Nous organisons une grande fête pour le réveillon du Nouvel An.
•
Many people watch fireworks on New Year's Eve.
Beaucoup de gens regardent des feux d'artifice le réveillon du Nouvel An.