hair

noun

(countable) A pigmented filament of keratin which grows from a follicle on the skin of humans and other mammals.

(uncountable) The collection or mass of such growths growing from the skin of humans and animals, and forming a covering for a part of the head or for any part or the whole body.

(countable) Any slender, flexible outgrowth, filament, or fiber growing or projecting from the surface of an object or organism.

(countable) Any very small distance, or degree; a hairbreadth.

(countable, engineering, firearms) A locking spring or other safety device in the lock of a rifle, etc., capable of being released by a slight pressure on a hair-trigger.

(slang, uncountable) Complexity; difficulty; the quality of being hairy.

(zoology, countable) A slender outgrowth from the chitinous cuticle of insects, spiders, crustaceans, and other invertebrates. Such hairs are totally unlike those of vertebrates in structure, composition, and mode of growth.

(botany, countable) A cellular outgrowth of the epidermis, consisting of one or of several cells, whether pointed, hooked, knobbed, or stellated.

A surname.

verb

(transitive) To remove the hair from.

(intransitive) To grow hair (where there was a bald spot).

(transitive) To cause to have or bear hair; to provide with hair

To string the bow for a violin.

Synonyms for hair

whiskern tressesn hairsbreadthn setula braidsn manen hairbreadth

Synonyms & related words for hair

Find synonyms, related words, and the definition of hair — including whisker, tresses, hairsbreadth, setula, braids, mane. Dendril is a free visual thesaurus that shows them on an interactive map where stronger matches sit closer to the center — no signup, no ads.

Words related to hair

Explore words related to hair — words associated with it, words that go with it, and its nearest matches in meaning. Related words include haircloth, piliferous, unhair, hairweaving, pileous, piliform, pilous, hairdo. Click any word to make it the center of the map and keep exploring the web of connections.

Synonyms for hair

Common synonyms for hair include whisker, tresses, hairsbreadth, setula, braids, mane, hairbreadth — words that share a close meaning. Hover or tap any word on the map for its definition and part of speech.