Test

Test or testing may be one of the following processes:

Test and experiment form parts of the scientific method, to verify or falsify an expectation with an observation. See statistical hypothesis testing for the case when the outcome is subject to random variation.
A Fire test, which is used to qualify fire protection products.
A Test (student assessment), in education, (also called an "examination" or "exam") serves to assess or measure students' performance, knowledge or skills.
In law, a legal test is a term of art for the application of a multi-part legal standard to a question of fact or law.
Quality control testing, in manufacturing, a procedure designed to test the functionality of a product under potentially harmful conditions; see also system under test.
Software testing, in software engineering, identifies defects in programs.
In marketing, a type of marketing research.

Other uses of the word test:

Andrew Martin used the ringname Test in professional wrestling.
Test match, in sports, a game with international overtones.
Test cricket, in the sport of cricket, consists of a two-innings match between two top-level cricketing nations.
Test (biology) is the shell of one of certain microbes, such as testate foraminifera and testate amoebas.
test is a Unix command for evaluating conditional expressions.
In fishing, a measure of the strength of fishing line.
River Test, England.
Test, German magazine, also known as "Stiftung Warentest".

Tester

Tester' may refer to:

Somebody carrying out any of the above test processes.
A panel painting suspended above a medieval tomb, or a panel over a four poster bed used to suspend curtains.
Jon Tester, Democratic Junior Senator from Montana, USA.
A multimeter, a testing device used in electronics.