Illustration of hair
- 1 shaft
- 2 sebaceous gland
- 3 epidermis
- 4 dermis
- 5 hair follicle
- 6 bulb
- 7 papilla
often attributive
1
2
3
a
: a minute distance or amount
won by a hair
b
: a precise degree
aligned to a hair
5
: a filamentous structure that resembles hair
leaf hair
Examples of hair in a Sentence
He plucked a hair from his arm.
There are dog hairs all over my coat.
The hair on her arms is blond.
He has a lot of hair on his chest.
He got his hair cut last week.
He has a thick head of hair.
a balding man who is losing his hair
He won the race by a hair.
He was a hair off on the count.
Recent Examples on the Web
May Help Treat Dandruff Some studies suggest that using shampoos or hair tonics with lemongrass may help significantly improve dandruff.3
2.
—
Sherri Gordon, Health, 31 July 2025
Thousands left in divestitures, including the sale or spin-offs of Iams pet food, Duracell batteries and a large portfolio of more than 40 beauty brands, including Clairol and Wella hair coloring and CoverGirl makeup.
—Alexander Coolidge, USA Today, 31 July 2025
Growth was offset by a decline in the Clear brand, which was impacted by slow market growth in China, and by a volume decline in TRESemmé hair care.
—Samantha Conti, Footwear News, 31 July 2025
Many suggested the woman should just tip, so as not to make the makeup artist and hair stylist suffer because of the bride's rudeness.
—Rachel Raposas, People.com, 31 July 2025
See All Example Sentences for hair
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Sherri Gordon, Health, 31 July 2025
Thousands left in divestitures, including the sale or spin-offs of Iams pet food, Duracell batteries and a large portfolio of more than 40 beauty brands, including Clairol and Wella hair coloring and CoverGirl makeup.
—Alexander Coolidge, USA Today, 31 July 2025
Growth was offset by a decline in the Clear brand, which was impacted by slow market growth in China, and by a volume decline in TRESemmé hair care.
—Samantha Conti, Footwear News, 31 July 2025
Many suggested the woman should just tip, so as not to make the makeup artist and hair stylist suffer because of the bride's rudeness.
—Rachel Raposas, People.com, 31 July 2025
See All Example Sentences for hair
Cite this Entry
“Hair.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hair. Accessed 4 Aug. 2025.
Copy CitationKids Definition
hair
noun
ˈha(ə)r 
ˈhe(ə)r
1
a
: a slender threadlike growth from the skin of an animal
especially
: one that usually contains coloring and forms part of the characteristic coat of a mammal
b
: a covering or growth of hairs of an animal or a body part
2
: a tiny distance or amount
won by a hair
3
: a threadlike structure that resembles hair
leaf hairs
Medical Definition
hair
nounoften attributive
1
: a slender threadlike outgrowth of the epidermis of an animal
especially
: one of the usually pigmented filaments that form the characteristic coat of a mammal
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