tetrad
tet·rad/ˈtɛtɹæd/noun
tetrad is spelled T-E-T-R-A-D: 6 letters and 2 syllables (tet·rad). It appears about once in every 9 million words in written English, the 88,353rd most frequent word form (wordfreq, 2021 data). As a noun, tetrad means “A group of four things” (English Wiktionary, September 2026). The plural of tetrad is tetrads.
How many letters and syllables are in tetrad?
| Letters | 6: T-E-T-R-A-D |
|---|---|
| Syllables | 2: tet·rad |
| In writing | about once in every 9 million words; the 88,353rd most frequent word form |
| Wrong spellings searched | none measured in search |
| Same letters |
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); rhymes and same-letter words are computed by PlainSpell from its own word list.
How common is tetrad?
Tetrad appears about once in every 9 million words in written English, the 88,353rd 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 tetrad?
- US /ˈtɛtɹæd/
- Australia /ˈtetɹæd/
- /ˈtetɹɛd/
Tetrad has 2 syllables, split tet·rad in writing.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-tetrad.wav, Wikimedia Commons (author and licence on each file's page).
What rhymes with tetrad?
No other word on PlainSpell ends in the same sounds as tetrad (/ɛtɹæd/).
Spelled with the same letters in another order: ratted.
Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).
Forms of tetrad
- tetrads plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does tetrad mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A group of four things.
- 2
Two pairs of sister chromatids (a dyad pair) aligned in a certain way and often on the equatorial plane during the meiosis process.
- 3
A group of four haploid and immature pollen grains in tetrahedral fashion produced by meiotic microsporogenesis.
- 4
A unit of land area of two by two (that is, four) square kilometres.
- 5
A tetravalent atom or radical.
- 6
A group of four basis vectors for a four-dimensional manifold in differential geometry.
- 7
A chord comprised of four notes; a tetrachord.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Tetrad in Spanish, French, German and Portuguese
In the sense Translations:
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does tetrad come from?
From Ancient Greek τετράς (tetrás), analysable as tetra- + -ad.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).