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
2
3
a
: a textile design consisting of lengthwise or crosswise lines usually one thread wide
b
: a fabric with such a design
4
a
: the outline of scalp hair especially on the forehead
b
: the way the hair frames the face
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
That extra step takes the hairline from okay to flawless.
—
Noel Cymone Walker, StyleCaster, 25 Sep. 2025
Combining hair transplant operations with scientific methods and an aesthetic point of view, this duo stands out with their personalized hairline design and microsurgical techniques.
—Wyles Daniel, jsonline.com, 19 Sep. 2025
Before-and-after images of hair transplants performed at Smile Hair Clinic highlight the natural-looking hairlines and improved density patients can achieve.
—Daniel Fusch, USA Today, 17 Sep. 2025
At Diotima, Oribe hairstylist Joey George and Addiction Tokyo global creative director Kanako Takase tag-teamed a look that involved fresh faces, low buns and a delicate smattering of white paint along the hairline and forehead.
—Kaleigh Werner, Footwear News, 16 Sep. 2025
See All Example Sentences for hairline
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Noel Cymone Walker, StyleCaster, 25 Sep. 2025
Combining hair transplant operations with scientific methods and an aesthetic point of view, this duo stands out with their personalized hairline design and microsurgical techniques.
—Wyles Daniel, jsonline.com, 19 Sep. 2025
Before-and-after images of hair transplants performed at Smile Hair Clinic highlight the natural-looking hairlines and improved density patients can achieve.
—Daniel Fusch, USA Today, 17 Sep. 2025
At Diotima, Oribe hairstylist Joey George and Addiction Tokyo global creative director Kanako Takase tag-teamed a look that involved fresh faces, low buns and a delicate smattering of white paint along the hairline and forehead.
—Kaleigh Werner, Footwear News, 16 Sep. 2025
See All Example Sentences for hairline
Cite this Entry
“Hairline.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hairline. Accessed 3 Oct. 2025.
Copy CitationKids Definition
hairline
noun
hair·line
ˈha(ə)r-ˌlīn 
ˈhe(ə)r-
1
a
: a very slender line
b
: a very thin crack on a surface
a hairline bone fracture
2
: the outline of the hair on the head and especially on the forehead
hairline
adjective
Medical Definition
hairline
noun
hair·line
-ˈlīn
: the outline of scalp hair especially on the forehead
hairline
adjective
Love words? Need even more definitions?
Merriam-Webster unabridged
Share