nocturne

/nɔk.tyʁn/
1.
nounfeminineSing

late‑night opening

evening/night‑time event (e.g., museum opening late)

Le musée organise une nocturne tous les jeudis jusqu'à 22 h.

The museum holds a late‑night opening every Thursday until 10 PM.

Synonyms:ouverture tardive, soirée, manifestation en soirée
2.
nounmasculineSing

nocturne (musical composition, typically a short, lyrical piece evoking the night)

Hier soir, j'ai écouté un nocturne de Chopin.

Last night I listened to a Chopin nocturne.

Synonyms:pièce musicale, morceau
3.
adjectiveSing

nocturnal

related to or occurring at night

Les activités nocturnes du chantier gênent les riverains.

The construction site's night‑time activities bother the residents.

Synonyms:de nuit