test is on the Basic English 850 List.
tendency - test - than
test is one of the 1000 most common headwords.
terrible - test - than

Pronunciation change

Noun change

Singular
test

Plural
tests

  1. (countable) A test is writing that many learners do in a room at the same time so that people are able to see how much knowledge the learners have.
    I'm happy because I got a high mark on the test.
  2. (countable) A test is something someone does to see if something works.
    The person did a good test of the machine by pushing all the buttons and watching the machine.

Verb change

Plain form
test

Third-person singular
tests

Past tense
tested

Past participle
tested

Present participle
testing

  1. (transitive) The action of testing; to try something out to see whether it works.
    He tested the software many times.