say nothing
Je ne voulais rien dire à personne.
I didn't want to tell anyone anything.
Si tu veux rien dire parce que tu lui as promis, OK, dis rien.
If you don't want to say anything because you promised him, OK, say nothing.
— Faute d'amour (2017)
Donc tu vas rien dire du tout.
So you're not going to say anything at all.
— Demain tout commence (2016)
Porté disparu, ça ne veut encore rien dire.
Being reported missing doesn't mean anything yet.
— Quand passent les cigognes (1957)