tester

Everyday

1. A tester is a person whose job is to test things, like games, apps, food or cars, to find problems. tree →
2. A tester is a small sample of a product, such as perfume or paint, that you can try before you buy. tree →
3. A tester can be a tool or device for testing, such as a battery tester. tree →
4. A tester is the canopy or cover over the top of a four-poster bed. tree →

In the lessons

In computing lessons, testers find bugs in programs; in science, testing and fair tests; in shops, perfume or make-up testers; phrases: game tester, battery tester, paint tester.

Examples

• The game tester found a bug in level three. tree →
• Mum tried a perfume tester in the shop. tree →
• We bought small paint testers to choose a colour. tree →
• The battery tester showed the battery was flat. tree →
• Testers check that toys are safe for children. tree →
• Software testers try to break programs on purpose. tree →
• So when Jan came home, she up and said to him, "Jan, what is that bag of groats on the tester for?" tree →

Note

Countable. Made from «test» + «-er» (a person or thing that does something). Do not confuse with «taster» (someone who tastes food).