Nob/nɑːb/ Definition 1 of 4Pro Tip 1/3Social Status Used to denote high social or economic status in a slightly informal way. The party was hosted by local nobs. Pro Tip 2/3Mildly Derogatory Can be used humorously or lightly disparaging to mock someone's self-importance. He acts like such a nob since getting that promotion. Pro Tip 3/3British Slang Commonly recognized in the UK but may be misunderstood or unknown in other English-speaking areas. She married a real nob and moved to London.