For mild disgust or annoyance:
* "Beurk!" This is a common expression for mild disgust, like when you taste something bad.
* "Pff!" This is a sound of annoyance or dismissal.
* "Ah, non !" This is a more general expression of disapproval.
For stronger disgust or annoyance:
* "Dégoûtant !" This means "disgusting" and is used for stronger feelings of aversion.
* "Horreur !" This means "horror" and is used for a more dramatic expression of disgust.
* "C'est détestable !" This means "It's detestable!" and can be used to express strong annoyance.
For a general sound of frustration:
* "Grrr..." This is a sound of frustration, similar to "ugh."
* "Aaaaargh !" This is a more dramatic and exaggerated sound of frustration.
Ultimately, the best way to say "ugh" in French will depend on the specific situation and the emotion you want to convey.