a port and resort city on the French Riviera; site of an annual film festival
"Many celebrities gather in Cannes to attend the prestigious annual film festival held on the French Riviera."
A city in southeastern France
"The film festival held every year in Cannes attracts movie stars from all over the world."
The word comes from the French name for the city on the Mediterranean coast. It was borrowed into English to refer both to that location and its famous annual film festival.