How to Say “Dynamo” in Plural

By Hugh Zachary • Updated October 6, 2026

dynamos

The plural of "dynamo" is dynamos.

Some nouns that end in o add only -s. dynamo is one of them.

Meaning: a machine that produces electricity (noun)

How does it change in a sentence?

Use a plural verb with dynamos: the dynamos are. The possessive plural adds only an apostrophe: dynamos'.

How do you pronounce it?

dynamo is pronounced /ˈdaɪnəmoʊ/. The plural ending sounds like /z/.

Did you know?

At a school spelling bee in 1992, US Vice President Dan Quayle wrongly corrected a student's spelling of potato to potatoe. The plural potatoes has an e, but the singular does not.

Examples in context

The old bikes had dynamos for their lights.
Singular: The old bikes had a dynamo for their lights.
The dynamos power the lamps.
Singular: The dynamo powers the lamps.

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About The Author

Hugh Zachary

Hello, I'm Hugh! My eclectic interests range from studying the finer points of linguistics to cycling, sailing, and zoology. Fascinated by our rich English language, I have made educating others on its nuances my mission. My comprehensive guides on how to use various words in plural form, whether it's ‘aircraft’ or 'crocodile', are just an example! When I'm not crafting guides or studying plurals, you might find me cycling through my local park, sailing the open waters, or observing wildlife in their natural habitats.

Hugh ZacharyHelp make this guide better. Spot a mistake, know another way to say it, or have an example from real life? Share it below.

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