Hairline

//ˈhɛɹˌlaɪn// adj, noun

adj, noun ·Moderate ·College level

Definitions

Noun
  1. 1
    The line along one's forehead where hair starts growing.

    "It's just a receding hairline — it's not like you're going bald."

  2. 2
    the natural margin formed by hair on the head wordnet
  3. 3
    A very thin line in writing, drawing, or typography.
  4. 4
    a very thin line wordnet
  5. 5
    A very thin line in writing, drawing, or typography.; A very thin fissure.

    "While inspecting the new house, we found a few hairlines in one of the walls."

Show 1 more definition
  1. 6
    A fishing line made from hair.
Adjective
  1. 1
    Very thin, as thin as a hair. figuratively

    "There was a hairline crack in the airplane's wing."

Synonyms

All synonyms
bandbarcross hatchingcross-hatchingdashdelicacy

Example

More examples

"He's worried about his receding hairline."

Etymology

From hair + line.

Related phrases

fishing line

More for "hairline"

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.