A-line

adjective

Having a silhouette that replicates the letter A by flaring out from the top, like a funnel, narrow and fitted at the neck and shoulders, skimming the hips and widening toward the bottom, with little or no shaping or seaming at the waist.

Meanings

A-line1

adjectiveA-line (not comparable)
  1. not comparableHaving a silhouette that replicates the letter A by flaring out from the top, like a funnel, narrow and fitted at the neck and shoulders, skimming the hips and widening toward the bottom, with little or no shaping or seaming at the waist.
nounA-line (plural A-lines)

plural A-lines

  1. Any article of clothing with a narrow mid-section and a flared bottom.

A-line2

nounA-line (plural A-lines)

plural A-lines

  1. medicineArterial line.

Origin

  1. EnglishA
  2. Proto-Indo-European*līno-der.?
  3. Proto-Germanic*līną
  4. Proto-Germanic*līnǭ
  5. Proto-West Germanic*līnā
  6. Old Englishlīne
  7. Middle Englishline
  8. Englishline
  9. EnglishA-line

From A + line (“figure”).

Full word history & related roots →
Cite this entry
APA

A-line. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/A-line

MLA

“A-line.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/A-line. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “A-line,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/A-line.

Source: A-line on Wiktionary, CC BY-SA 4.0.