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noun

dynamo

DEYE-nuh-moh
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Dynamo (noun) means a machine that converts mechanical motion into electrical current. Example: “The old bicycle had a dynamo that powered its front lamp.”

noun
1
A machine that converts mechanical motion into electrical current.
"The old bicycle had a dynamo that powered its front lamp."
2
An extremely energetic and productive person.
"That new Vice President of Marketing is a real dynamo; sales have already gone up this quarter."
"Their new striker is an absolute dynamo on the pitch."

How to use dynamo

Learner’s notes

In plain EnglishA device that generates electricity from movement, or a tirelessly energetic person.

Common pairings
bicycle dynamo a real dynamo
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Word forms

Plural
dynamos
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Fill the gap

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The old bicycle had a _____ that powered its front lamp.

Etymology

A shortening of "dynamo-electric machine", built from the Greek root dúnamis, meaning power.

Origin: Greek

Rhymes for dynamo

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Frequently asked questions

What does “dynamo” mean?
The word “dynamo” means a machine that converts mechanical motion into electrical current. In plain terms, a device that generates electricity from movement, or a tirelessly energetic person.
How do you pronounce “dynamo”?
“Dynamo” is pronounced DEYE-nuh-moh (/ˈdaɪnəmoʊ/ in IPA).
How do you use “dynamo” in a sentence?
Here is “dynamo” used in a sentence: “The old bicycle had a dynamo that powered its front lamp.”
What part of speech is “dynamo”?
“Dynamo” is a noun.
Where does the word “dynamo” come from?
The word “dynamo” comes from Greek. A shortening of "dynamo-electric machine", built from the Greek root dúnamis, meaning power.
How many meanings does “dynamo” have?
“Dynamo” has 2 distinct senses listed in this dictionary. The most common is: a machine that converts mechanical motion into electrical current.