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 in one's hair, out of one's 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
Her silver and black hair hung around her shoulders.
—
Francesca Chambers, USA Today, 13 Dec. 2025
The Wavytalk acts as a three-in-one tool that can curl, brush, and blowout hair.
—Rylee Johnston, PEOPLE, 12 Dec. 2025
The authors of the 1972 study were only able to use a few hair fibers because the Jane Austen Society wished to keep the majority of the sample intact.
—Ashley Strickland, CNN Money, 12 Dec. 2025
Once indoors, avoid walking on frostbitten feet and do not use direct heat sources such as stoves, fireplaces, heating pads, hot water bottles or hair dryers, as frostbitten skin can burn easily.
—Brandi D. Addison, Louisville Courier Journal, 12 Dec. 2025
See All Example Sentences for hair
Examples are automatically compiled from online sources to
show current usage.
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Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
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Francesca Chambers, USA Today, 13 Dec. 2025
The Wavytalk acts as a three-in-one tool that can curl, brush, and blowout hair.
—Rylee Johnston, PEOPLE, 12 Dec. 2025
The authors of the 1972 study were only able to use a few hair fibers because the Jane Austen Society wished to keep the majority of the sample intact.
—Ashley Strickland, CNN Money, 12 Dec. 2025
Once indoors, avoid walking on frostbitten feet and do not use direct heat sources such as stoves, fireplaces, heating pads, hot water bottles or hair dryers, as frostbitten skin can burn easily.
—Brandi D. Addison, Louisville Courier Journal, 12 Dec. 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 15 Dec. 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
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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