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Definitions

prefix

[pree-fiks, pree-fiks, pree-fiks] / ˈpri fɪks, ˈpri fɪks, priˈfɪks /
NOUN
an addition
Synonyms


NOUN
a designation
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

One number, with a 901 prefix from Shelby County, Tenn., jumped out, Sternin testified, because of the number of times that Harvey had contacted it.

From Los Angeles Times ● Aug. 5, 2026

That prefix would also have to remind the AI to obey the laws of physics with wording like: “gravity and inertia respected—mass has real weight, correct contact shadows, no floating props.”

From The Wall Street Journal ● May 21, 2026

Medha remembered that Monica had been named with this “Kosi” prefix before her adoption.

From BBC ● Sep. 10, 2024

The human rights center disclosed in its 2019 report that it used the federally assigned prefix “RPN-” for “repatriate” to plug information into free flight-tracking websites and obtain a plane’s tail number and ownership.

From Seattle Times ● Mar. 11, 2024

NOTE.—The forms ac-, af-, etc., are euphonic variations of ad-, and follow generally the rule that the final consonant of the prefix assimilates to the initial letter of the root.

From New Word-Analysis by William Swinton

The Paris and Geneva families settled their dispute in 2018, agreeing to add prefixes or additional names in marketing.

From The Wall Street Journal ● Apr. 30, 2026

The conference handed out call-letter prefixes — C for Canada, X for Mexico, F for France, and so on.

From Los Angeles Times ● Aug. 12, 2024

“It is a very difficult word,” Haviv said, veering gracefully around the pileup of prefixes that Congress chose to describe the 250th anniversary of American independence — fast approaching on July 4, 2026.

From Seattle Times ● Dec. 4, 2023

To boost comprehension, students learn about prefixes, root words and suffixes — for example that “bene” means good or “audi” means hear.

From New York Times ● Dec. 25, 2022

Pupils are required to unite the prefixes and suffixes with the radicals, thus forming the English derivatives, which may be given either orally or in writing.

From New Word-Analysis by William Swinton

Basic Care has a large Amazon logo right at the top, Stone and Beam notes that its products are “exclusively on Amazon,” and Rivet’s product names are prefixed with “Amazon Brand.”

From The Verge ● Nov. 30, 2021

Other Lamonts married descendants of the Plymouth Puritan William Bradford, Ned’s grandfather prefixed by nine “greats.”

From Salon ● Nov. 28, 2018

On a Mac, hidden files and folders are prefixed with "." which the operating system places before A in alphabetical order.

From BBC ● Feb. 15, 2016

Once upon a time, more or less every team had one, the relevant player’s name usually prefixed by “diminutive” and “Scot”; Tony Green, for example.

From The Guardian ● May 29, 2015

When prefixed to the name of an office, ex- denotes that the person formerly held the office named: as, ex-mayor, the former mayor.

From New Word-Analysis by William Swinton

The ubiquity of “Design” has rendered itself in many forms, prefixing and suffixing subjects including graphic, product, industrial, computer, systems, architecture, community, environments, molecules, and more.

From Forbes ● Oct. 10, 2012

Ever since Hollywood started prefixing adaptations of the Bard's work with "William Shakespeare's", authorial provenance has inflicted some unsightly vandalism on film titles.

From The Guardian ● May 8, 2010

In fact, any game may be termed a rig, racket, suit, slum, etc. by prefixing thereto the particular branch of depredation or fraud in question.

From Time Magazine Archive

The prefixing of all events, and “marvelling” at anything, are out of the question.

From The Doctrines of Predestination, Reprobation, and Election by Robert Wallace

Frequently, however, especially for an adjective of two or more syllables, the comparative is formed by prefixing more or less to the positive, and the superlative by prefixing most or least.

From Business English A Practice Book by Rose Buhlig




Vocabulary lists containing prefix


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