jure

/ʒyʁ/jurer
1.
verbInd1stPresSing1,3

swear (take an oath)

promise / vow

strongly assert

Je te jure que c'est la vérité.

I swear to you that it's the truth.

2.
verbInd1stPresSing1,3

swear (use profanity or expletives)

Il a juré quand il s'est coupé le doigt.

He swore when he cut his finger.

3.
verbInd1stPresSing1,3

clash / be discordant (visually or stylistically)

Ce tapis rouge jure avec les murs bleus.

That red rug clashes with the blue walls.