transformer

noun

trans·​form·​er tran(t)s-ˈfȯr-mər How to pronounce transformer (audio)
Synonyms of transformernext
: one that transforms
specifically : a device employing the principle of mutual induction to convert variations of current in a primary circuit into variations of voltage and current in a secondary circuit

Examples of transformer in a Sentence

Recent Examples on the Web
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The initiative provided free connections to households and small businesses located near transformers, with funders covering the standard $115 connection fee. ABC News, 1 Apr. 2026 For the new Monon Corridor, one of the transformers on the new route still needs to be replaced. Doug Ross, Chicago Tribune, 1 Apr. 2026 Garrett would be a franchise transformer and allow the Giants’ remaining pass rushers to exist in an environment that wouldn’t force them to be the table-setter, taking on consistent double teams. Robert Marvi, MSNBC Newsweek, 31 Mar. 2026 Still, humans are transformers. Annie Lowrey, The Atlantic, 25 Mar. 2026 See All Example Sentences for transformer

Word History

First Known Use

1596, in the meaning defined above

Time Traveler
The first known use of transformer was in 1596

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Cite this Entry

“Transformer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/transformer. Accessed 5 Apr. 2026.

Kids Definition

transformer

noun
trans·​form·​er tran(t)s-ˈfȯr-mər How to pronounce transformer (audio)
: a device for changing an electric current into one of different voltage
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