testing

testing — noun

IPA/ˈtestɪŋ/
KK[tˈɛstɪŋ]IPA/ˈtestɪŋ/

1. the process of checking someone's knowledge, a product's quality, or a system's

1.nounB1
Definition

the process of checking someone's knowledge, a product's quality, or a system's safety through exams, experiments, or inspections.

Example

All new drugs must go through years of testing before reaching the public.

uncountable: go through + testing

The school announced a week of standardized testing for all final-year students.

collocation: standardized testing

Common collocations
  • conduct testing
  • undergo testing
  • carry out testing
  • testing phase
  • testing process
  • testing equipment
  • round of testing
  • standardized testing
  • animal testing
  • drug testing
  • product testing
Synonyms
  • assessment

    broader in scope — can include observations, portfolios, and ongoing evaluation, not just formal tests

  • examination

    more formal and often focuses on written tests of knowledge in schools or professional settings

  • screening

    used for checking large groups for specific problems, such as medical screening or background checks

Grammar Patterns

testing + of + noun

go through / undergo + testing

round / phase / stage + of + testing

Usage Note

Uncountable — do not say 'testings'. Use 'a test' or 'tests' for individual instances. Common after verbs like 'conduct', 'carry out', 'undergo', and 'require'.

Common Mistakes

We performed three testings this month.
We performed three tests this month.
'Testing' is uncountable; use 'test' for a single event or 'tests' for multiple events.

testing — adjective

IPA/ˈtes.tɪŋ/
KK[tˈɛstɪŋ]IPA/ˈtes.tɪŋ/

Word family

Synonym discussion

Sense: noun/1

While testing, assessment, evaluation, and examination all involve measuring knowledge or performance, they differ in scope and purpose. Testing usually refers to a specific, concrete procedure — a written exam, a lab experiment, or a practical check — with clear right-or-wrong answers. Assessment is broader, covering any method of judging someone's abilities, including teacher observations, project work, and self-evaluation. Evaluation adds a judgment of overall value or quality, often used for programmes, courses, or products rather than individual students. Examination suggests a formal, high-stakes written test held at a fixed time, often at the end of a course. For example, a school may use continuous assessment throughout the term, hold a final examination at year-end, and conduct programme evaluation every three years — but the actual testing happens when students sit for the exam.

Common collocations

Nouns

  • drug testing
  • product testing
  • animal testing
  • software testing
  • medical testing
  • genetic testing
  • standardized testing

Phrases

  • go through testing
  • conduct testing on
  • carry out testing
  • undergo testing
  • put to the test

Prepositions

  • testing of [something/someone]
  • testing for [a disease/quality/trait]

Etymology

LatinOld FrenchEnglish

The word 'testing' comes from the noun 'test', which entered English from Old French 'test', meaning 'a small vessel used to judge the purity of metals'. This goes back to Latin 'testum' — an earthen pot used in ancient alchemy for melting and examining metal ores. The idea of using a container to check quality slowly shifted into the general sense of 'a procedure for measuring ability or quality' by the late 17th century. The adjective meaning 'difficult' developed in the 19th century, based on the idea that hard situations put a person's abilities to the test.