Tester

/ˈtɛstər/

Meaning & Definition

noun
A person or device that tests something, especially for quality or functionality.
The software tester identified several bugs in the application before its release.
A tool or device used to test the performance or quality of an object or substance.
The engineer used a voltage tester to check the electrical circuits.
A person who evaluates products or services to provide feedback.
She was hired as a product tester to provide insights on the new cosmetics line.

Etymology

The word 'tester' comes from the Middle French word 'tester' meaning 'to test or examine'.

Common Phrases and Expressions

test the waters:
To try something out before a larger commitment.
put to the test:
To examine or challenge something.
trial and error:
A method of reaching a desired outcome through experimentation.

Related Words

Slang Meanings

A tester who works in software development.
That coder is just a tester, not a developer.
A sample or promotional item to evaluate a product.
I got a free tester of that new skincare line.