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


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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 In addition to the Equality Act, advocates would like Biden to deliver on his campaign promise to support state and federal efforts to give nonbinary people access to an X gender marker on IDs, including passports. NBC News, "Undoing 4 years of 'damage': LGBTQ advocates on Biden's first 100 days," 2 May 2021 When Adams was buried at Grandview Memorial Park-Hollis Lakes April 16, the customary, temporary name marker was not left by his grave site. Josh Peter, USA TODAY, "'What happens next?' Seeking answers on guns, race, NFL following mass shooting by former player," 28 Apr. 2021 If not for a marker placed by the Texas Historical Commission, those with little knowledge of the city might not realize the range of stories this place holds. Maggie Kelleher, Dallas News, "Oak Cliff cemetery provides a map of Dallas’ past, and a way to look at its future," 26 Apr. 2021 The crash occurred on U.S. 80 near the 21-mile marker, approximately 10 miles west of Livingston city limits. Matt Wake |, al, "2 people killed in car accident near Livingston," 25 Apr. 2021 Harris sought money from casino-revenue funds for the marker, whose base is encircled by hostas. Marc Bona, cleveland, "John Heisman historical marker is put up at proper house after years of research," 24 Apr. 2021 One reviewer even showed pictures of how Goof Off removed permanent (that’s right, permanent) marker from her upholstered dining chairs. Southern Living, "The Best Laundry Spot Removers on Amazon for Every Type of Stain," 16 Apr. 2021 For anyone who ever wondered if that marker (which included a fictional death date of 1968) was real, the exhibit answers the question. David Browne, Rolling Stone, "From ‘Blowin’ in the Wind’ to ‘I Can’t Breathe’: Protest Songs Spotlighted in Revamped Exhibit," 9 Apr. 2021 Color pencil, marker, or watercolor for the finals., "Community News For The Wethersfield Edition," 26 Mar. 2021

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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Time Traveler for marker

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

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Last Updated

9 May 2021

Cite this Entry

“Marker.” Dictionary, Merriam-Webster, Accessed 18 May. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

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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

More from Merriam-Webster on marker

Thesaurus: All synonyms and antonyms for marker

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

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