heyday

1 of 2

noun

hey·​day ˈhā-ˌdā How to pronounce heyday (audio)
1
: the period of one's greatest popularity, vigor, or prosperity
2
archaic : high spirits

heyday

2 of 2

interjection

archaic
used to express elation or wonder

Did you know?

In its earliest appearances in English, in the 16th century, heyday was used as an interjection that expressed elation or wonder (similar to our word hey, from which it derives). Within a few decades, heyday was seeing use as a noun meaning "high spirits." This sense can be seen in Act III, scene 4 of Hamlet, when the Prince of Denmark tells his mother, "You cannot call it love; for at your age / The heyday in the blood is tame…." The word's second syllable is not thought to be borne of the modern word day (or any of its ancestors), but in the 18th century the syllable's resemblance to that word likely influenced the development of the now-familiar use referring to the period when one's achievement or popularity has reached its zenith.

Examples of heyday in a Sentence

Noun in its heyday, the circus was a major form of entertainment for small-town America
Recent Examples on the Web
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Noun
Matzek was a dominant reliever with the Braves in his heyday from 2020-22. Noah Camras, MSNBC Newsweek, 16 May 2025 But the government wants to recapture Puerto Rico’s heyday, when dozens of big-name companies, especially in the pharmaceutical sector, were based here and kept the economy humming. Dánica Coto, Los Angeles Times, 12 May 2025 In a recent sit-down with Haute Living, the legendary actor and martial artist shared his thoughts on the current state of Hollywood stunts, which, unlike in Chan’s heyday, is dominated by CGI and wirework trickery. Jack Dunn, Variety, 11 May 2025 In the Spotted Pig’s heyday, Mr. Friedman’s high-profile regulars filled the room — including Mario Batali, an investor in the restaurant who was opening his own places as fast as adoring fans could fill them. New York Times, 7 May 2025 See All Example Sentences for heyday

Word History

Etymology

Interjection

irregular from hey

First Known Use

Noun

circa 1590, in the meaning defined at sense 2

Interjection

circa 1529, in the meaning defined above

Time Traveler
The first known use of heyday was circa 1529

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Cite this Entry

“Heyday.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heyday. Accessed 25 May. 2025.

Kids Definition

heyday

noun
hey·​day
ˈhā-ˌdā
: the time of greatest strength, popularity, or vigor

More from Merriam-Webster on heyday

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