What does "roundel" mean?

Anything having a round form; a round figure; a circle.

What is a synonym for "roundel"?

Common synonyms include: alba, anacreontic, annular muscle, annulet, annulus, areola.

//ˈɹaʊn.dəl// noun

noun ·Moderate ·High school level

Noun

1
Anything having a round form; a round figure; a circle.
"the London Underground roundel"
2
(heraldry) a charge in the shape of a filled circle wordnet
3
A roundelay or rondelay.
"Come, now a roundel and a fairy song ... Fairies sing."
4
round piece of armor plate that protects the armpit wordnet
5
A small circular shield, sometimes not more than a foot in diameter, used by soldiers in the fourteenth and fifteenth centuries.
"The roundel or rondache derived its name from its circular figure, it was made of oziers boards of light wood, sinews or ropes, covered with leather, plates of metal, or stuck full of nails in concentric circles or other figures."

Show 5 more definitions

6
English form of rondeau having three triplets with a refrain after the first and third wordnet
7
A circular spot; a charge in the form of a small coloured circle.
8
A circular insignia painted on an aircraft to identify its nationality or service.
9
A bastion of a circular form.
10
An umbrella. India, obsolete
"[…] a Roundel-boy; whose business, is, to walk by his master, and defend him with his Roundel or Umbrella from the heat of the sun."

"The Overground has been given a seat at the Underground table. It has the roundel, the Johnston typeface, and it is on the Tube map."

From Middle English roundel, rundel, rondel, from Old French rondel (“something round and flat”), a diminutive of rond (“round”). More at round.

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