What does "beau monde" mean?

The fashionable part of society.

Beau monde

Common synonyms include: aristocracy, beautiful people, bon ton, carriage trade, drawing room, elite.

noun

noun ·Rare ·Advanced level

Noun

1
The fashionable part of society. dated
"...and I am sure you will permit me to invite a friend or two, for you know I only deal with choice spirits, the élite of the beau monde."
2
the fashionable elite wordnet

"...and I am sure you will permit me to invite a friend or two, for you know I only deal with choice spirits, the élite of the beau monde."

Borrowed from French beau monde (literally “beautiful world”).