Longman Dictionary of Contemporary English homepage

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

prefix

1 noun
     
Related topics: Grammar
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]

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary