trial >> ˈtrʌɪəl
Definition: [noun] a formal examination of evidence by a judge, typically before a jury, in order to decide guilt in a case of criminal or civil proceedings.
Example: the newspaper accounts of the trial
Definition: [noun] a test of the performance, qualities, or suitability of someone or something.
Example: clinical trials must establish whether the new hip replacements are working
Definition: [noun] a person, experience, or situation that tests a person's endurance or forbearance.
Example: the trials and tribulations of married life
Definition: [verb] test (something, especially a new product) to assess its suitability or performance.
Example: teachers all over the UK are trialling the materials
Definition: [verb] (of a horse, dog, or other animal) compete in trials.
Example: the pup trialled on Saturday