hairline

/ˈhɛrˌlaɪn/
noun
  1. The edge of a person's hair, especially on the forehead.
    • His hairline started to recede when he was in his thirties.
    • She has a natural widow's peak at her hairline.
    • The barber carefully trimmed the hair along his hairline.
  2. A very thin line or crack.
    • A hairline of light appeared under the door.
    • There was a hairline in the ceramic vase that made it fragile.
    • The artist used a brush to draw a hairline across the canvas.
Synonyms
adjective
  1. Extremely thin or narrow.
    • The doctor spotted a hairline crack in the bone.
    • She wore a hairline bracelet that was barely visible.
    • There is a hairline difference between the two shades of white.
Antonyms
What does "hairline" mean? | whatsthatwordmean | whatsthatwordmean