hair·line | \ˈher-ˈlīn \

Definition of hairline 

1 : a very slender line: such as

a : a tiny line or crack on a surface a hairline bone fracture

b : a fine line connecting thicker strokes in a printed letter

3a : a textile design consisting of lengthwise or crosswise lines usually one thread wide

b : a fabric with such a design

4a : the outline of scalp hair especially on the forehead

b : the way the hair frames the face

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Other Words from hairline

hairline adjective

Examples of hairline in a Sentence

The plate had a hairline running across it. He has a receding hairline.

Recent Examples on the Web

The key to keeping your braid uniform is to take a section that goes all the way from your hairline back to the braid, not just a chunk from the front. Kara Mcgrath, Seventeen, "How To Master a Perfect French Braid," 22 Feb. 2018 Gently kiss down the forehead, starting at the hairline, along the slope of the nose, ending at the lips. Bernadette Anat, Seventeen, "How to Kiss: 20 Secrets Good Kissers Know," 8 Jan. 2018 Our high blood pressure and receding hairlines do that. James Breakwell, Indianapolis Star, "Xploding Unicorn: Dads don't need a special day to remind them they're dads," 15 June 2018 In a few cases, the makeup got dark and severe, and the hairstyles received a striking middle part and pasted-down hairline. Melissa Magsaysay,, "At the Met Gala, stars show off their saintly side with classic looks. Here are 6 major beauty trends," 8 May 2018 According to deputies, the man, described as a stocky black man with a receding hairline, opened a business account at American National Bank at 4301 N. Federal Hwy. Howard Cohen, miamiherald, "Man assumes pool builder's identity to score $8,000 from Broward bank, BSO says," 5 June 2018 The suspect, described a 30- to 40 year-old white man with a medium build and a receding hairline driving a white Ford Explorer, swerved out of his lane and then abruptly back in, CHP said. Claire Morgan, sacbee, "Hit-and-run driver sought after Highway 65 crash in Roseville, CHP says," 3 July 2018 Hard-to-reach areas are prime real estate for blood-feeding parasites that don’t want to be dislodged, so make sure to check the hairline (especially on children), torso, belly button and groin. Joyce Sakamoto, Washington Post, "Ticks and mosquitoes are ready to deliver disease in a bite, but you can stop them," 18 June 2018 Using a toothbrush and a mist of hairspray, smooth any flyaways at your hairline. Jillian Ruffo,, "KarJenner Hairstylist Justine Marjan Wants You to Get 5 Days Out of Your Blowout: Here's How," 31 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hairline.' 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 hairline

1846, in the meaning defined at sense 1

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Dictionary Entries near hairline


hair kiln



hair man

hair moss

hair moth

Statistics for hairline

Last Updated

21 Sep 2018

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Time Traveler for hairline

The first known use of hairline was in 1846

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More Definitions for hairline



English Language Learners Definition of hairline

: a thin line or crack

: the line where your hair starts on your forehead


hair·line | \-ˈlīn \

Medical Definition of hairline 

: the outline of scalp hair especially on the forehead

Other Words from hairline

hairline adjective

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Comments on hairline

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