English Dictionary

prefix

/ˈpɹiːfɪks/

noun

(grammar, linguistic morphology) A morpheme added to the beginning of a word to modify its meaning, for example as, pre- in prefix, con- in conjure, re- in reheat, etc.

The prefix 'un-' is used to create words with a negative meaning.

意味（1）

(grammar, linguistic morphology) A morpheme added to the beginning of a word to modify its meaning, for example as, pre- in prefix, con- in conjure, re- in reheat, etc.

意味（2）

(telecommunications) A set of digits placed before a telephone number, to indicate where the number is based, what type of phone number it is (landline, mobile, toll-free, premium rate etc.)

in the UK, a number with an 0800 prefix is a toll-free number.

意味（3）

A title added to a person's name, such as Mr. or Dr.

意味（4）

(computing) An initial segment of a string of characters.

The string abra is both a prefix and a suffix of the string abracadabra.