This word is off-limits
In the Netmums piece, Sarah Carpenter also shared the word that is banned from use with Norland nannies. A Norland nanny won’t use the term ‘silly’ unless in a lighthearted context like ‘let’s make silly faces’.
Norland nannies put emphasize the action, not the child when using a negative word towards them.

Royal nanny Maria Teresa Turrion Borrallo
George, Charlotte, and Louis are parented with the support of Norland nanny, Maria Teresa Turrion Borrallo.
Maria joined the Waleses in 2014 when they were the Duke and Duchess of Cambridge and has since been spotted at historic events such as the wedding of Princess Eugenie to Jack Brooksbank when she rode in the car with bridesmaid Princess Charlotte.

She was also seen helping the Princess of Wales with Prince George at his sister Charlotte’s christening in 2015 where she was spotted interacting with the late Queen.
Royal commentator Victoria Murphy told ABC News: “The nannies are taught everything from defensive driving to security issues to how to care for a future king or queen.”