The idea of meeting a member of the royal family is a daunting one. With strict protocols in place and an emphasis on the correct etiquette, it's hard to know what the right thing to say is – and, it turns out, there are some words best avoided if you are speaking to King Charles or the Princess of Wales.
Social anthropologist Kate Fox, author of Watching the English: The Hidden Rules of English Behaviour, has studied the linguistic quirks of the upper classes, and identified a list of verbal dos and don'ts when speaking to a royal. Let's take a look…
Kate Fox has identified some dos and don'ts when speaking to the British royals
It's a word that most of us would use to describe the upper classes, but the royal themselves would never opt to say 'posh'.
Instead, they would use the word 'smart'. According to Kate, 'posh' would only ever be used "ironically, in a jokey tone, to show that you know it's a low-class word".
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Buckingham Palace has a huge number of rooms, but you won't find a single 'lounge'.
Instead, the Windsors relax in a 'sitting room' or a 'drawing room'. As a side note, 'sofa' is apparently the appropriate term for a 'settee' or a 'couch'.
The word 'toilet' is also never used by members of the royal family – 'lavatory' or 'loo' are the preferred terms. According to Kate, the royals historically avoided using 'toilet' because of its French origins.
Different people have different names for their parents as they're growing up, but for the most part, they become 'mum and dad' as we get older.
This isn't the case in the royal family. King Charles touchingly referred to his late mother as 'mummy', while Prince George calls Prince William 'Pops' – adorable!
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