The term "limey" is a somewhat derogatory slang term for a British person. Some synonyms for "limey" include:
Brit: This is a more neutral term that simply refers to a person from Britain. For example, "The group of tourists included several Brits." While not as derogatory as "limey", it still might be considered a bit informal in some contexts.
Britisher: Similar to "Brit", this word refers to a person from Britain. However, it may sound a bit old-fashioned or formal. For instance, "The old books often referred to the Britishers."
Anglo: This term can refer to a person of English descent or to someone from an English-speaking country. It is also sometimes used in a more technical or historical context. For example, "The study focused on the migration patterns of the Anglos." While not exactly a synonym for "limey", it can be used to refer to people from Britain in a broader sense.
It's important to note that using derogatory terms like "limey" is not appropriate or polite. We should strive to use respectful language when referring to people from different countries and cultures.