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clarion.

A medieval brass instrument chiefly used as a battle signal; related to the trumpet, it had a narrow, straight pipe and a high-pitched, piercing sound.

7 characters2 syllables approx.English language

Meaning & usage

noun/ˈklæɹ.ɪ.ən/Received-Pronunciation/ˈklæɹ.i.ən//ˈklɛɹ.i.ən/
  1. A medieval brass instrument chiefly used as a battle signal; related to the trumpet, it had a narrow, straight pipe and a high-pitched, piercing sound.

    historical · poetic
    The clarion’s call to action has been heard.
  2. The sound of a clarion (sense 1), or any sound resembling the loud, high-pitched note of a clarion.

    broadly · poetic
  3. An organ stop consisting of pipes with reeds giving a high-pitched note like that of a clarion (sense 1).

    broadly
  4. The middle register of the clarinet.

    broadly
  5. A charge thought to represent a type of wind instrument, a keyboard instrument like a spinet, or perhaps a rest used by a knight to support a lance during jousting.

Where this word comes from

The noun is derived from Middle English clarion, clarioun (“trumpet with a narrow tube and a shrill sound, clarion; clarion player”) [and other forms], from Old French claron, clarïon (“clarion”) [and other forms], from Medieval Latin clāriōn, clario, clārōn (“clarion; trumpet”), from Latin clārus (“audible; clear, distinct, loud; (visually) bright, clear”), ultimately from Proto-Indo-European *kelh₁- (“to call, summon; to cry”). The adjective is from an attributive use of the noun.

adj/ˈklæɹ.ɪ.ən/Received-Pronunciation/ˈklæɹ.i.ən//ˈklɛɹ.i.ən/
  1. Of a sound, a voice, a message, etc.: brilliantly clear.

    not-comparable
    her clarion top notes
Where this word comes from

The noun is derived from Middle English clarion, clarioun (“trumpet with a narrow tube and a shrill sound, clarion; clarion player”) [and other forms], from Old French claron, clarïon (“clarion”) [and other forms], from Medieval Latin clāriōn, clario, clārōn (“clarion; trumpet”), from Latin clārus (“audible; clear, distinct, loud; (visually) bright, clear”), ultimately from Proto-Indo-European *kelh₁- (“to call, summon; to cry”). The adjective is from an attributive use of the noun.

verb/ˈklæɹ.ɪ.ən/Received-Pronunciation/ˈklæɹ.i.ən//ˈklɛɹ.i.ən/
  1. To announce or herald (something) using a clarion (noun sense 1).

    rare · transitive
  2. To announce or herald (something) using a clarion (noun sense 1). To announce or herald (something) clearly, especially so as to stir or unite people.

    figuratively · rare · transitive
  3. Of a thing: to cause (a place) to echo with a sound like that of a clarion.

    also · figuratively · rare · transitive
  4. To sound a clarion; also, to make a high-pitched, piercing sound like that of a clarion.

    intransitive · rare
Where this word comes from

From Middle English clariounen (“of a horn or trumpet: to blow, sound”), from clarioun (noun) (see etymology 1) + -en (suffix forming the infinitives of verbs). Later uses may also be derived directly from the noun.

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.