What is 'beautiful one' in French?

La belle is a French equivalent of 'Beautiful one'. The feminine definite article 'la' means 'the'. The feminine adjective 'belle' used as a noun means 'beautiful one'. All together, it's pronounced 'lah behl'.

That's what's said about a 'beautiful one' who's female. For a male, it's 'le beau'. It's pronounced 'luh boh'.