mark·​er | \ ˈmär-kər How to pronounce marker (audio) \

Definition of marker

1 : one that marks
2 : something used for marking: such as
a : a type of felt tip pen that makes wide lines drew a tree with green and brown markers used a permanent marker to label the boxes
b : any of various sewing devices for making or indicating guidelines a pin marker for hemlines
3 : score sense 7 specifically : run
5 : something that serves to identify, predict, or characterize: such as
a : biomarker

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Synonyms for marker


label, tag, ticket

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Examples of marker in a Sentence

A person's accent can be a marker of social class. the markers on the rock and mineral specimens were old and faded

Recent Examples on the Web

That call is her marker in time: There was her normal life before it and her life now, which includes an unwanted expertise in burying young Americans. Claire Galofaro, The Seattle Times, "Moms of the dead from drugs: “Where is the outrage for us?”," 29 Jan. 2019 But entrepreneurs are particularly suited for our current moment, in which success in business is our primary marker of achievement. Rebecca Jennings, Vox, "CEOs have never been more idolized. 5 experts explain why that’s a problem.," 29 Nov. 2018 Next, mark the cut line onto the glass with a fine-tip indelible marker. Joseph Truini, Popular Mechanics, "How to Cut Glass," 11 Feb. 2019 All lanes blocked on the Beachline Expressway at mile marker 19. Bianca Padró Ocasio,, "Central Florida Traffic: What you need to know for your morning commute," 27 June 2018 The crash happened at the 22.5 mile marker of the main channel in Camden County. Kaitlyn Schwers, kansascity, "Boating accidents at Lake of the Ozarks send five people to the hospital," 9 June 2018 The eastbound lanes were closed for about four hours after a crash at mile marker 110 near the Hancock-Henry county line. Will Higgins, Indianapolis Star, "Motorist killed in massive crash on I-70, road closed for hours," 9 June 2018 A few years ago, Paul Bolcik and Erik Davis stood on East Patrick Street in Frederick, Md., looking at a Civil War historical marker. John Kelly, Washington Post, "On this spot: Two history buffs debunk the story of a famous Civil War photo," 7 June 2018 The right lane on I-65 at the 247.8 mile marker near the Crown Point exit was closed for about eight hours, the release states. Staff Report, Post-Tribune, "'Sneezing fit' while talking to Siri caused I-65 tanker rollover near Crown Point, police say," 4 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'marker.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of marker

15th century, in the meaning defined at sense 1

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Statistics for marker

Last Updated

18 Mar 2019

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Time Traveler for marker

The first known use of marker was in the 15th century

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More Definitions for marker



English Language Learners Definition of marker

: something (such as a sign or an object) that shows the location of something
: something that shows the presence or existence of something
: a type of pen that makes wide lines


mark·​er | \ ˈmär-kər How to pronounce marker (audio) \

Medical Definition of marker

: something that serves to identify, predict, or characterize a surface marker on a cell that acts as an antigen : as
a : biomarker The recent discovery of a serological marker for the hepatitis C virus has greatly improved diagnostic accuracy for this form of hepatitis. — Gary P. Wormser, letter in The Journal of the American Medical Association, 12 June 1991
b : genetic marker The idea in genetic linkage analysis is to see if any particular marker, which serves as a signpost for a specific region of a chromosome, is consistently inherited along with the disease …— Leslie Roberts, Science, 29 Jan. 1993

called also marker gene

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More from Merriam-Webster on marker

Rhyming Dictionary: Words that rhyme with marker

Thesaurus: All synonyms and antonyms for marker

Spanish Central: Translation of marker

Nglish: Translation of marker for Spanish Speakers Encyclopedia article about marker

Comments on marker

What made you want to look up marker? Please tell us where you read or heard it (including the quote, if possible).


grandiloquent, ostentatious, or bombastic

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