Can be confused: trail, trial (see synonym study at the current entry).
Synonyms 2, 3, 5. examination. T rial , experiment , test imply an attempt to find out something or to find out about something. T rial is the general word for a trying of anything: articles sent for ten days' free trial. E xperiment is a trial conducted to prove or illustrate the truth or validity of something, or an attempt to discover something new: an experiment in organic chemistry. T est is a more specific word, referring to a trial under approved and fixed conditions, or a final and decisive trial as a conclusion of past experiments: a test of a new type of airplane.4. endeavor, essay, struggle. 7. grief, tribulation, distress, sorrow, trouble, hardship. See affliction.
a. the act or an instance of trying or proving; test or experiment
b. (as modifier): a trial run
2.
law
a. the judicial examination of the issues in a civil or criminal cause by a competent tribunal and the determination of these issues in accordance with the law of the land
b. the determination of an accused person's guilt or innocence after hearing evidence for the prosecution and for the accused and the judicial examination of the issues involved
c. (as modifier): trial proceedings
3.
an effort or attempt to do something: we had three trials at the climb
4.
trouble or grief
5.
an annoying or frustrating person or thing
6.
(often plural) a competition for individuals: sheepdog trials
7.
a motorcycling competition in which the skills of the riders are tested over rough ground
8.
ceramics a piece of sample material used for testing the heat of a kiln and its effects
9.
on trial
a. undergoing trial, esp before a court of law
b. being tested, as before a commitment to purchase
—vb , trials, trialling, trialled
10.
(tr) to test or make experimental use of (something): the idea has been trialled in several schools
[C16: from Anglo-French, from trier to try]
'trialling1
—n
trial2 (ˈtraɪəl)
—n
1.
a grammatical number occurring in some languages for words in contexts where exactly three of their referents are described or referred to
2.
(modifier) relating to or inflected for this number
1436, "act or process of testing," from Anglo-Fr. trial, noun formed from triet "to try" (see try). Sense of "examining and deciding a case in a court of law" is first recorded 1577; extended to any ordeal by 1595.