Definition of trial run in US English:

trial run

noun

  • A test of the operation of a new system or product.

    ‘the police used Sunday's US Cup game as a trial run for next year's games’
    • ‘Technology that could underpin a national identity card scheme has been given a trial run in South Yorkshire as part of a nationwide pilot project.’
    • ‘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.’
    • ‘This game was a trial run of the first semi-final next week and it should turn out to be a nail-biter in good football tradition.’
    • ‘I am therefore going to run an experimental trial run next week, from Monday March 24 to Sunday March 30.’
    • ‘We wish them well in their trial run for the real exams next Summer.’
    • ‘The system already had a successful trial run in South Africa.’
    • ‘We can say with some certainty that the New York State experience is a trial run for battles to be fought in other states.’
    • ‘It had conducted a trial run of an electronic transfer system to enable customers to withdraw money just a day after it is remitted from a Gulf country.’
    • ‘A lot of people have said we should have a trial run, but you have to have the courage of your convictions.’
    • ‘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.’
    test, try-out, experiment, pilot study
    View synonyms

Pronunciation

trial run

/ˈˌtrī(ə)l ˈrən//ˈˌtraɪ(ə)l ˈrən/