semester

noun

se·​mes·​ter sə-ˈme-stər How to pronounce semester (audio)
1
: either of the two usually 18-week periods of instruction into which an academic year is often divided
2
: a period of six months
semestral adjective
or semestrial

Examples of semester in a Sentence

Recent Examples on the Web
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Nominations are submitted each semester, celebrating educators who go above and beyond to foster meaningful inclusion and engagement on their campuses. Anne Gelhaus, Mercury News, 8 Mar. 2026 That day came in the 2024 spring semester. Jackson Thompson, FOXNews.com, 8 Mar. 2026 This is admissions time this spring semester, and with these vouchers not being totally available to families until April, that's at the very end of the school year almost. Lacey Beasley, CBS News, 6 Mar. 2026 As the fall semester progressed, Fenster grew visibly frustrated with the pace and rigor of the review. Garrett Shanley, Miami Herald, 5 Mar. 2026 See All Example Sentences for semester

Word History

Etymology

German, from Latin semestris half-yearly, from sex six + mensis month — more at six, moon

First Known Use

1827, in the meaning defined at sense 1

Time Traveler
The first known use of semester was in 1827

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Cite this Entry

“Semester.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/semester. Accessed 12 Mar. 2026.

Kids Definition

semester

noun
se·​mes·​ter sə-ˈmes-tər How to pronounce semester (audio)
: either of two terms of about 18 weeks each that make up a school year

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