mullion

M3U1L1L1I1O1N1
/ˈmʌliən/

noun

A vertical bar between the panes of glass or casements of a window or the panels of a screen.

OriginMiddle English moyniel ← Old French moinel →
UncommonScrabble 9
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Meanings

mullion1

nounmullion (plural mullions)

plural mullions

  1. architectureA vertical bar between the panes of glass or casements of a window or the panels of a screen.
verbmullion (third-person singular simple present mullions, present participle mullioning, simple past and past participle mullioned)

present singular third person mullions · participle present mullioning · participle past mullioned · past mullioned

  1. transitiveTo shape into divisions by means of mullions.

Mullion2

proper noun
  1. A village and civil parish in south-west Cornwall, England (OS grid ref SW6719).
  2. A locality in Yass Valley council area, Southern Tablelands, New South Wales, Australia.

Origin

  1. Old Frenchmoinel
  2. Middle Englishmoyniel
  3. Englishmullion

Alteration of monial (“mullion”), or metathesis of Middle English moyniel, both ultimately from Old French moinel.

More words from Middle English, Old French

Full word history & related roots →

Translations

Catalan mainell
  • mainellvertical bar between the casements of a window
Chinese Mandarin 豎框 /竖框
  • 豎框 /竖框 (shùkuāng)vertical bar between the casements of a window
Czech sloupek
  • sloupekvertical bar between the casements of a window
Dutch middenstijl
  • middenstijlvertical bar between the casements of a window
Esperanto fenestrofosto
  • fenestrofostovertical bar between the casements of a window
Finnish jakokarmi
  • jakokarmivertical bar between the casements of a window
French meneau
  • meneauvertical bar between the casements of a window
German Pfosten, Mittelpfosten
  • Pfostenvertical bar between the casements of a window
  • Mittelpfostenvertical bar between the casements of a window
  • Stulpvertical bar between the casements of a window
Italian montante, colonnina
  • montantevertical bar between the casements of a window
  • colonninavertical bar between the casements of a window
Polish pionowa szczeblina, pionowy szpros
  • pionowa szczeblinavertical bar between the casements of a window
  • pionowy szprosvertical bar between the casements of a window
Portuguese mainel
  • mainelvertical bar between the casements of a window
Russian средник
  • средник (srednik)vertical bar between the casements of a window
Spanish mainel
  • mainelvertical bar between the casements of a window
Swedish fönsterpost, spröjs
  • fönsterpostvertical bar between the casements of a window
  • spröjsvertical bar between the casements of a window

Rhymes & wordplay

Rhymes with mullion

gullion
All rhymes →

Anagrams

luminol
Cite this entry
APA

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

MLA

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

Chicago

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

Source: mullion on Wiktionary, CC BY-SA 4.0.