I went to a French conversation class for the first time today. It is aimed at people who have a bit of French and want to improve for holidays. We were talking about what we have for breakfast and the teacher said the plural of 'oeuf' was 'oeux'. I was surprised as I had been sure it was 'oeufs' but thought maybe I'd got it wrong all these years. Googling seems confirm that it is indeed 'oeufs' (maybe she got confused with 'yeux'). Or is there a French region/dialect where they say 'oeux'?