Testaren

Testaren is a Swedish term meaning the person who performs tests. It is the definite singular form of the noun testare, which designates a person whose work or role involves testing products, software, experiments, or processes. The term is used across professional contexts—such as software development, quality assurance, laboratory research, and consumer testing—and can also appear in journalism or fiction to describe a character responsible for evaluation.

Grammatically, testare is the indefinite form; testaren is the definite singular. The plural is testare (indefinite) and testarna (definite). The word derives from the verb testa (to test) with the agent noun suffix -are, plus the definite suffix -n on the singular form.

Usage notes: In Swedish, many speakers prefer "testare" in neutral reference; "testaren" is used when the tester is explicitly identified or as a title-like reference. The English equivalent is "tester," but in Swedish "testaren" functions similarly as a common noun when specifying "the tester."

See also: testare, testing, QA, software testing.