tester
2 synonyms for tester, grouped by meaning and by how common each one is.
Noun — A person whose job is to check that a product or system works correctly.
Synonyms
Less common
Still standard English, but they carry more weight.
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
How to use tester
The word patterns that sound natural to a native speaker.
Etymology
From Old French testre, "a canopy", ultimately from Latin testura. The modern sense of "someone who tests things" is simply "test" plus the agent suffix "-er".
Full origin of tester →