Mushroom – English Idiom – Online English Lessons

To mushroom is to grow or multipy very fast.

It has its origins in the fact that mushrooms are well known for growing very quickly.

Examples of use:

1. The number of holiday homes in Cornwall has mushroomed in the last few years.

2. We only planned to redecorate our bedroom, but the project mushroomed into a whole house renovation!

3. The number of English language blogs has mushroomed.

4. Our business started small but it is mushrooming. We expect to turn over £250,000 in our first year.

Image © Michael King