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trial

1 trial /ˈtrajəl/ noun
plural trials
1 trial
/ˈtrajəl/
noun
plural trials
Britannica Dictionary definition of TRIAL
: a formal meeting in a court in which evidence about crimes, disagreements, etc., is presented to a judge and often a jury so that decisions can be made according to the law
[count]
[noncount]
[count]
: a test of the quality, value, or usefulness of something
: a test of someone's ability to do something that is used to see if he or she should join a team, perform in a play, etc.
[count]
: something (such as a difficult situation or task) that shows how patient, strong, or trusting you are
: something or someone that is difficult to deal with : an annoying or unpleasant thing or person
[count] : an event at which animals compete and perform

on trial

: in a situation in which evidence against you is presented in a court to a judge and often a jury to decide if you are guilty of a crime
sometimes used figuratively

trial and error

: a process in which you find out the best way to solve a problem, do something, etc., by trying different ways until one is successful
2 trial /ˈtrajəl/ adjective
2 trial
/ˈtrajəl/
adjective
Britannica Dictionary definition of TRIAL
always used before a noun
: relating to or used in a test that is done for a period of time to see if something is worth buying, using, etc.
3 trial /ˈtrajəl/ verb
trials; trialled; trialling
3 trial
/ˈtrajəl/
verb
trials; trialled; trialling
Britannica Dictionary definition of TRIAL
[+ object] British
: to test the quality, value, or usefulness of (something)