to bathe, to go swimming, to immerse
As-tu jamais été te baigner nu ?
Have you ever gone swimming naked?
Allons nous baigner dans la Strawberry River.
Let’s go swimming in the Strawberry River.
— Tenacious D Et Le Mediator Du Destin (2006)
Nous l'avons vu en allant nous baigner.
We saw him while we were going swimming.
— Les Fraises sauvages (1957)
Pourquoi ne vas-tu pas te baigner, ma fille ?
Why don't you go for a swim, my daughter?
— La petite Véra (1988)
Avez-vous jamais été vous baigner nu ?
Have you ever gone swimming naked?
Tu peux te baigner maintenant.
You can swim now.
Il faisait si chaud que nous sommes allés nous baigner.
It was so hot that we went swimming.
Do you want to go swimming?