Date: 1600-1700
Language: Modern Latin
Origin: praefixum, from Latin praefigere 'to fasten before'


1 noun
pre‧fix1 [countable]
1SLG technical a group of letters that is added to the beginning of a word to change its meaning and make a new word, such as 'un' in 'untie' or 'mis' in 'misunderstand' [↪ affix, suffix]
2 a number or letter that comes before other numbers or letters, especially a group of numbers that comes before a telephone number when you are calling someone in a different area
3 old-fashioned a title such as 'Ms' or 'Dr' used before someone's name [= title]

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