The most arrogant or supremely snobbish person; someone who is extremely conceited and thinks they're better than everyone else.
From 'arch-' (chief, extreme) plus 'snob' (origin uncertain, possibly from 'nob' meaning head or someone of status). The compound emphasizes extreme or supreme snobbery.
If someone is just a 'snob,' they're annoying, but an 'archsnob' is the stereotypical villain from a fancy period drama who treats servants terribly and only talks about their ancestors!
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