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Definition of hair

hair

/hɛər/
hair

Plural:hairs
•
Adjective:hairy
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hair Lexical Profile

hair Game Scores & Validity

• noun

1

The mass of fine, thread-like strands growing from the skin of humans, mammals, or other animals, particularly those growing on the human scalp.

Example

"She tied her long brown hair into a ponytail before the soccer match began."


2

A single, cylindrical, thread-like outgrowth from a follicle in the epidermis of a mammal.

Example

"The forensic investigator found a single blonde hair on the back of the driver's seat."


3

A fine, filamentous structure resembling a mammalian hair, found on the epidermis of a plant, insect, or other organism.

Example

"The leaves of the carnivorous plant are covered in tiny sensory hairs that trigger when an insect lands on them."

Synonyms
View all synonyms for hair

Word Nuance & Usage

'Hair' is typically treated as an uncountable noun when referring to the entire mass of strands on a head, but functions as a countable noun when referring to individual, isolated strands.

• Rhymes for hair

Word Origin & Etymology

From Old English 'hǣr', of Germanic origin; related to Dutch 'haar' and German 'Haar'.

Usage Trend

Historical frequency of usage in published text.

180019102020

Cite this Entry


Wordmom. (2026). Definition of Hair. In Wordmom Dictionary. Retrieved Nov 6, 2026, from https://wordmom.com/dictionary/hair
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