tester
tester Lexical Profile
tester Game Scores & Validity
• noun
A person who examines, evaluates, or tries out something, especially a new product, software application, or academic candidate, to assess its quality, performance, or suitability.
"The software company hired a team of quality assurance testers to identify bugs before the official launch."
An instrument, device, or apparatus used to measure, check, or verify the condition, functionality, or chemical properties of something.
"The electrician used a voltage tester to confirm that the circuit was completely de-energized."
A small sample or open container of a product, such as perfume, cosmetics, or paint, provided in a store for customers to try before purchasing.
"She sprayed a bit of perfume from the tester onto a paper strip to see if she liked the fragrance."
A flat canopy made of wood or fabric erected over a four-poster bed, pulpit, or tomb.
"The antique four-poster bed featured a carved oak tester draped with heavy velvet curtains."
• Rhymes for tester
Word Origin & Etymology
In its common senses, derived from the verb 'test' plus the agent suffix '-er'. In the architectural sense of a canopy, it derives from Middle English 'tester', from Old French 'testiere' (headpiece or helmet), ultimately from Vulgar Latin 'testa' meaning 'head'.
Usage Trend
Historical frequency of usage in published text.