trimester
/ˈt(ʃ)ɹaɪ.mɛs.təɹ/noun
trimester is spelled T-R-I-M-E-S-T-E-R: 9 letters and 3 syllables. It appears 1.2 times per million words in written English, the 26,420th most frequent word form (wordfreq, 2021 data). As a noun, trimester means “A period of three months or about three months; (financial): quarter” (English Wiktionary, September 2026). The plural of trimester is trimesters.
How many letters and syllables are in trimester?
| Letters | 9: T-R-I-M-E-S-T-E-R |
|---|---|
| Syllables | 3 (from its American pronunciation) |
| In writing | 1.2 times per million words; the 26,420th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is trimester?
Trimester appears 1.2 times per million words in written English, the 26,420th 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 trimester?
- UK /ˈtɹ(a)ɪ.mɛs.tə(ɹ)/
- UK /tɹ(a)ɪˈmɛs.tə(ɹ)/
- US /ˈt(ʃ)ɹaɪ.mɛs.təɹ/
Trimester has 3 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En-us-trimester.ogg, En-au-trimester.ogg, Wikimedia Commons (author and licence on each file's page).
Forms of trimester
- trimesters plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does trimester mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A period of three months or about three months; (financial): quarter.
She is in the second trimester of her first pregnancy.
- 2
One of the terms of an academic year in those learning institutions that divide their teaching in three roughly equal terms, each about three months long. Compare semester.
The school operates on a trimester schedule.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Trimester in Spanish, French, German and Portuguese
In the sense period of three months:
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 trimester come from?
From French trimestre, from Latin trimestris (“of three months”), from trēs (“three”) + mensis (“month”).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).