on trial

on trial  {adv.} or  {adj. phr.}
1. For testing or trying out for a time before making a decision.
I was lucky that I had bought the machine on trial because I didn't like it and was able to return it.
Mother bought a new dishwasher on trial and was trying it out before deciding whether to keep it.
2. In a court being tried for a crime before a judge or jury.
John White was on trial for murder.
Mary was on trial before the Student Committee for spoiling school property.
Categories: adjective adverb time

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