testing

noun
UK /ˈtestɪŋ/
US /ˈtestɪŋ/

Testing is when you try something to see if it works or is right.

The teacher did some testing to see how much we learned.


OTHER MEANINGS

2. The act of giving exams to students or people.

Testing week at school makes everyone nervous.

3. Checking software or machines to find problems.

The team finished testing the new app before it launched.

4. Something that is very difficult or annoying to deal with.

Waiting in that long line was really testing.