Definition of trial run in English:

trial run

Syllabification: tri·al run

noun

  • A test of the operation of a new system or product.
    More example sentences
    • With the experience of the trial run, they hope to fine tune the system and make it fool proof, so that passengers using the facility will not be disappointed.
    • Two members of the operational team, it went on to say, had evaded security checks during a recent trial run at an unidentified New York airport.
    • I am therefore going to run an experimental trial run next week, from Monday March 24 to Sunday March 30.

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Word of the day coloratura
Pronunciation: ˌkələrəˈto͝orə
noun
elaborate ornamentation of a vocal melody