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Definition prefix in British English

prefix noun

[countable] noun
/ˈpriːfɪks/
1

a group of letters that is added to the beginning of a word to change its meaning. For example, the prefix 'un-' is added to the word 'tidy' to form 'untidy'.

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2

a title such as 'Dr' or 'Mrs' that is used before someone's name

Synonyms and related words
Definition prefix in British English