- The definition of a prefix is a word or part of a word that is placed at the beginning of another word to change its meaning.
An example of prefix is adding extra to ordinary, creating extraordinary.
prefix definition by Webster's New World
- to fix to the beginning of a word, etc.; esp., to add as a prefix
- Rare to fix beforehand
Origin: Middle English prefyxen ; from Middle French prefixer ; from Classical Latin praefixus, past participle of praefigere ; from prae-, before (see pre-) plush figere, to fix
- a syllable, group of syllables, or word joined to the beginning of another word or a base to alter its meaning or create a new word (Ex.: pre- in precool, un- in unsure)
- a title that is placed before a person's name, as Dr.
- an identifying letter or number placed before another number, etc.
Origin: ModL praefixum < neut. of L praefixus: see prefixthe
prefix definition by American Heritage Dictionary
transitive verb pre·fixed, pre·fix·ing, pre·fix·es
- To put or attach before or in front of.
- To settle or arrange in advance.
- Grammar a. To add as a prefix.b. To add a prefix to.
- Grammar An affix, such as dis- in disbelieve, attached to the front of a word to produce a derivative word or an inflected form.
- A title placed before a person's name.
Origin: Middle English prefixen, from Old French prefixer : pre-, before (from Latin prae-; see pre-) + fixer, to place (from Latin fīxus, past participle of fīgere, to fasten; see dhīgw- in Indo-European roots). N., from New Latin praefīxum, from neuter sing. of Latin praefīxus, past participle of praefīgere, to fix in front : prae-, pre- + fīgere, to fasten.
- preˈfixˌal adjective
- preˈfixˌal·ly adverb
- preˌfix·aˈtion , pre·fixˈion noun
prefix - Computer Definition
The beginning or to add to the beginning. To prefix a header onto a packet means to place the header characters in front of the packet. "To prefix" at the beginning is the opposite of "to append" characters at the end. See prepend.
prefix - Cultural Definition
Letters placed in front of a word to form a new word: “trimonthly,” “semimonthly,” “bilingual,” “multilingual,” “address,” “redress,” “predate,” “postdate.” (Compare suffix.)