trial balloon

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trial balloon

  • /ˌtɹaɪəl bəˈluːn/ UK
  • /ˌtɹaɪəl bəˈlun/ US

Rhymes with -uːn

Where it comes from

Calque of French ballon d’essai (“small balloon released into the sky to determine the direction and tendency of winds in the upper air before a manned ascent in a larger balloon; (figuratively) prospective action to test acceptance”): ballon (“balloon”), essai (“trial, try; assay”).

noun trial balloons · trial-balloon

  1. historical A small balloon released into the sky to determine the direction and tendency of winds in the upper air before a manned ascent in a larger balloon; a ballon d'essai. For many weeks in succession the little trial balloons thrown up to show the course of the wind were driven back upon the shores of France.
  2. figuratively, idiomatic An idea, suggestion, or prospective action, product, etc., offered to an audience or group in order to test whether it generates acceptance or interest. "The originality of the plan and views of the author [Jean Baptiste Bory de Saint-Vincent], and, above all, the perfect independence of its execution," are, according to the narrator in the Bulletin, the chief features of this new production; and the summary sketch of it which has been published, is

    Similar: ballon d'essai, feeler

Translations

Every language

noun small balloon released into the sky to determine the direction and tendency of winds

Portuguêsbalão de ensaio
Françaisballon d'essai

noun idea, suggestion, etc., offered to test whether it generates acceptance or interest

日本語観測気球 kansoku kikyū
Françaisballon d'essai
DeutschVersuchsballon
Italianonotizia sonda
Русскийпро́бный шар próbnyj šar, зонда́ж zondáž
עבריתבָּלוֹן נִסּוּי balon nisuy

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MLA

"trial balloon." Wiktionary, via Micwyn, micwyn.com/word/trial%20balloon. Accessed 6 Nov. 2026.

APA

trial balloon. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/trial%20balloon

Chicago

"trial balloon." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/trial%20balloon.

BibTeX
@misc{trial_balloon_2026,
  title = {trial balloon},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/trial%20balloon},
  urldate = {2026-11-06}
}