trial

Pronunciation: /ˈtɹaɪəl/

The English word “trial” has 18 meanings listed here.

noun

An occasion on which a person or thing is tested to find out how well they perform or how suitable they are.
The testing of a product or procedure.
A research study to test the effectiveness and safety of a drug, medical procedure, etc.
An event in which athletes’ or animals’ abilities are tested as they compete for a place on a team, or to move on to the next level of a championship, for example.
A piece of ware used to test the heat of a kiln.
An internal examination set by Eton College.
An occasion on which armies or individuals meet in combat.
A meeting or series of meetings in a court of law at which evidence is presented to a judge (and sometimes a jury) to allow them to decide on a legal matter (especially whether an accused person is guilty of a crime).
A difficult or annoying experience or person; (especially religion) such an experience seen as a test of faith and piety.
The action of trying (to do) something, especially more than once. (This sense is still current in the expression trial and error.)
The trial number.

To carry out a series of tests on (a new product, procedure etc.) before marketing or implementing it.
To try out (a new player) in a sports team.

From Middle English trial, triall, from Anglo-Norman trial, triel, from trier (“to pick out, cull”) + -al. More at English try.

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Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.