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
see also:
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
Namira, whose dark hair had burgundy streaks, wore hoop earrings and a tangle of gold necklaces.
—
Molly Fischer, New Yorker, 10 Apr. 2026
Duchamp also penciled in the back of the young girl’s hair in a mirror depicted in the ad.
—Howard Halle, ARTnews.com, 10 Apr. 2026
After the wakeup call, the crew has some time to get ready (think brushing their teeth and combing their hair).
—Tariq Malik, Space.com, 10 Apr. 2026
Celebrity guests were also decked out in their finest attire, following the minimalist dress code, as they were treated to a dance show centered around hair, along with pizza and cookies at the end of the evening.
—Gina Kalsi, PEOPLE, 10 Apr. 2026
See All Example Sentences for hair
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Molly Fischer, New Yorker, 10 Apr. 2026
Duchamp also penciled in the back of the young girl’s hair in a mirror depicted in the ad.
—Howard Halle, ARTnews.com, 10 Apr. 2026
After the wakeup call, the crew has some time to get ready (think brushing their teeth and combing their hair).
—Tariq Malik, Space.com, 10 Apr. 2026
Celebrity guests were also decked out in their finest attire, following the minimalist dress code, as they were treated to a dance show centered around hair, along with pizza and cookies at the end of the evening.
—Gina Kalsi, PEOPLE, 10 Apr. 2026
See All Example Sentences for hair
Cite this Entry
“Hair.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hair. Accessed 12 Apr. 2026.
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
haired
adjective
ˈha(ə)rd,
ˈhe(ə)rd
hairless
adjective
ˈha(ə)r-ləs,
ˈhe(ə)r-
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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