Ton (le bon ton)
"The ton" is a term commonly used to refer to Britain's high society during the late Regency and the reign of George IV, and later. It is a French word meaning (in this sense) "manners" or "style" and is pronounced as in French ([tɔ̃]). The full phrase is le bon ton meaning "good manners" or "good form" – characteristics held as ideal by the British beau monde.
The term le beau monde (pronounced [bo mɔ̃d]), literally meaning "the beautiful world" (but here meaning "fashionable people," or "fashionable society"), was similar to le bon ton during the nineteenth century.
"The ton" has also been used to refer to the Upper Ten Thousand of later 19th-century society, including most of the peerage, aristocracy and wealthy merchants or bankers of the City (of London).
The social ladder
Ton society was intensely class-conscious and the social hierarchy was incredibly rigid. Birth, wealth, titles, and other factors determined class standing:
Monarch
Royalty
Peers and their families
Gentry