heyday

H4E1Y4D2A1Y4
/ˈheɪdeɪ/

noun

A period of success, popularity, or power; prime.

“The early twentieth century was the heyday of the steam locomotive.”

Less commonScrabble 16

Meanings

nounheyday (plural heydays)

plural heydays · alternative hay day · alternative hayday

  1. A period of success, popularity, or power; prime.

    The early twentieth century was the heyday of the steam locomotive.

    3 more examples

    Must your hot ytch and plurisie of lust, The heyday of your luxury, be fedd Up to a surfeite, and could none but I Be pickt out to be cloake to your close tricks, Your belly-sports?

    c. 1626 or 1629–1633 (first performance), [John Ford], ’Tis Pitty Shee’s a Whore […], London: […] Nicholas Okes for Richard Collins, […], published 1633, →OCLC, Act IV

    She started learning the craft at age 13 from her father, who founded the family's tile business, Kam Fat Mahjong, in 1962. Masters who would visit Hong Kong during its manufacturing heyday in the 1970s and 80s also shared their techniques and trained apprentices.

    2025 July 27, Kathleen Magramo, “The game is almost over for one of Hong Kong’s last mahjong carvers”, in CNN

    There has been a marked shift in viewing habits since the channels’ heyday, with music videos now more commonly consumed on YouTube and social media rather than television.

    2026 January 1, Max Pilley, “MTV shuts down final music-only channels with ‘Video Killed The Radio Star’”, in NME
  2. archaicAn exultation of the spirits; gaiety; frolic.
interjection

alternative hay day · alternative hayday

  1. A lively greeting.

    "Heyday, Miss Morland!" said he. "What is the meaning of this? I thought you and I were to dance together."

    1798, Jane Austen, Northanger Abbey

    Synonyms: hello

  2. obsoleteAn expression of frolic and exultation, and sometimes of wonder.

    Bass. Heydey! good words, good words, I must beleeue'em And be a Coxcombe for my labor.

    1633, John Ford, The Broken Heart, act IV, scene i, page 252
    2 more examples

    "Come follow me, my wags, and say, as I say. There's no riches but in rags; hey day, hey day, &c."

    1600, Ben Jonson - Cynthia's Revels

    Here Jones, having ordered a servant to show a room above stairs, was ascending, when the dishevelled fair, hastily following, was laid hold on by the master of the house, who cried, “Heyday, where is that beggar wench going? Stay below stairs, I desire you.”

    1749, Henry Fielding, The History of Tom Jones, a Foundling, volume (please specify |volume=I to VI), London: A[ndrew] Millar, […], →OCLC

    Synonyms: wow

Synonyms & antonyms

interjectionA lively greeting.

Similar

interjectionAn expression of frolic and exultation, and sometimes of wonder.

Similar

More synonyms by meaning

nounthe period of greatest prosperity or productivity

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

Late 16th century, from earlier heyda (1520s), as exclamation; compare hey, hei and Swedish hej då. Sense “period of success, vigor” is a reanalysis as heyday based on unrelated day (as “period of time”) – compare day in the sun.

Full word history & related roots →

Translations

Bulgarian разцвет, апогей
  • разцвет (razcvet)a period of success, popularity or power
  • апогей (apogej)a period of success, popularity or power
Czech rozkvět, vrchol
  • rozkvěta period of success, popularity or power
  • vrchola period of success, popularity or power
  • rozmacha period of success, popularity or power
Danish blomstringstid, storhedstid
  • blomstringstida period of success, popularity or power
  • storhedstida period of success, popularity or power
  • velmagtsdagea period of success, popularity or power
Dutch hoogtijdag, bloeitijd
  • hoogtijdaga period of success, popularity or power
  • bloeitijda period of success, popularity or power
Esperanto zenito
  • zenitoa period of success, popularity or power
Finnish kukoistuskausi
  • kukoistuskausia period of success, popularity or power
French âge d’or
  • âge d’ora period of success, popularity or power
German Blütezeit
  • Blütezeita period of success, popularity or power
Hungarian fénykor
  • fénykora period of success, popularity or power
Italian auge
  • augea period of success, popularity or power
Japanese 全盛期
  • 全盛期 (zenseiki)a period of success, popularity or power
Korean 전성기
  • 전성기 (jeonseonggi)a period of success, popularity or power
Māori poutūmārōtanga
  • poutūmārōtangaa period of success, popularity or power
Norwegian glansperiode
  • glansperiodea period of success, popularity or power
Polish szczyt, pełnia
  • szczyta period of success, popularity or power
  • pełniaa period of success, popularity or power
  • rozkwita period of success, popularity or power
Portuguese auge
  • augea period of success, popularity or power
Russian расцве́т, зени́т
  • расцве́т (rascvét)a period of success, popularity or power
  • зени́т (zenít)a period of success, popularity or power
  • лу́чшая пора́ (lúčšaja porá)a period of success, popularity or power
Spanish auge
  • augea period of success, popularity or power
Swedish storhetstid
  • storhetstida period of success, popularity or power
Ukrainian ро́зквіт
  • ро́зквіт (rózkvit)a period of success, popularity or power

Rhymes & wordplay

Rhymes with heyday

All rhymes →
Cite this entry
APA

heyday. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/heyday

MLA

“heyday.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/heyday. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “heyday,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/heyday.

Source: heyday on Wiktionary, CC BY-SA 4.0.