mensonge

/mɑ̃.sɔ̃ʒ/
1.
nounmasculineSing

lie

falsehood

Je savais que c'était un mensonge dès qu'il a ouvert la bouche.

I knew it was a lie as soon as he opened his mouth.

Synonyms:bobard, contre-vérité, sornette, mytho