on trial

Idioms  

1. In the process of being tried, especially in a court of law. For example, He would be put on trial for the murder of his wife . [Early 1700s]

2. As a test of something, on probation, as in They said we could take the vacuum cleaner on trial and return it if it was too noisy . [Early 1700s]

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Example Sentences

The seven people on trial include his main medical adviser, Leopoldo Luque, and his psychiatrist Agustina Cosachov.

From BBC • Apr. 14, 2026

And earlier this month, his former transport minister, José Luis Ábalos, went on trial over allegations he received kickbacks on sales of Personal Protective Equipment to the Spanish government during the Covid pandemic.

From BBC • Apr. 13, 2026

“Faces of Death” is so steeped in the computer monitor’s point of view that, ultimately, the internet isn’t merely the defendant on trial — it’s also the judge and jury.

From Los Angeles Times • Apr. 9, 2026

Bazoum's presidential immunity was lifted in 2024 but his lawyers believe it unlikely that the official end of his term in office will accelerate him being put on trial.

From Barron's • Mar. 31, 2026

He stopped, and just like in the movies he gave me a long, steady look as if I were on trial and now was the moment for me to break down and confess.

From "Dead End in Norvelt" by Jack Gantos