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heptad

hep·tad/ˈhɛptæd/noun

heptad is spelled H-E-P-T-A-D: 6 letters and 2 syllables (hep·tad). It appears about once in every 87 million words in written English, the 297,763rd most frequent word form (wordfreq, 2021 data). As a noun, heptad means “Synonym of septet: a group of seven things” (English Wiktionary, September 2026). The plural of heptad is heptads.

How many letters and syllables are in heptad?

Letters6: H-E-P-T-A-D
Syllables2: hep·tad
In writingabout once in every 87 million words; the 297,763rd most frequent word form
Wrong spellings searchednone measured in search

Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How common is heptad?

Heptad appears about once in every 87 million words in written English, the 297,763rd most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How do you pronounce heptad?

  • US /ˈhɛptæd/

Heptad has 2 syllables, split hep·tad in writing.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Forms of heptad

  • heptads plural

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

What does heptad mean?

The meanings the English Wiktionary records, quoted as written there (source below).

noun

  1. 1

    Synonym of septet: a group of seven things.

  2. 2

    A sequence of seven bases.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Where does heptad come from?

From hepta- + -ad.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

What to look up after heptad