Meaning & use
dynamo
A machine that generates electricity by converting mechanical energy into electrical energy.
See it in a sentence
The engineer inspected the old dynamo that supplied power to the lighthouse.
Early bicycles used a small dynamo pressed against the wheel to light the lamp.
A note on using this word
In everyday speech, dynamo is used informally to praise a highly energetic or productive person, distinct from its technical meaning.
Words with a similar meaning
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Another way to use it
2. noun
An extremely energetic, forceful, or productive person.
Their new manager was a dynamo, reorganizing the entire department within weeks.
Make it your own
Write a sentence using “dynamo”, then compare your use with the examples above.
Your draft stays on this page and is not sent anywhere.