ˌse-mē,
-ˌmī,
-mi
1
a
: precisely half of:
(1)
: forming a bisection of
semidiameter
(2)
: being a usually vertically bisected form of (a specified architectural feature)
semidome
b
: half in quantity or value : half of or occurring halfway through a specified period of time
semiannual
semimonthly
compare bi-
2
3
a
: partial : incomplete
semiconsciousness
semidarkness
b
: having some of the characteristics of
semiporcelain
c
: quasi-
semigovernmental
semimonastic
Examples of semi in a Sentence
Recent Examples on the Web
Dan Sheldon, New York Times, 21 Sep. 2025
The local schools with the most semi-finalists were Ardrey Kell High School, Myers Park High School and Charlotte Latin School.
—Rebecca Noel, Charlotte Observer, 19 Sep. 2025
Singh’s truck blocked both lanes of the northbound Turnpike, leading the Chrysler Town & Country minivan the three friends were riding in to slam into the semi’s 18-wheeler trailer, crumpling underneath it.
—Jacqueline Charles, Miami Herald, 18 Sep. 2025
In 2020, her first, The Blind Goat, was recognized as a semi-finalist for the James Beard Foundation's Best New Restaurant Award, per her website.
—Christopher Rudolph, PEOPLE, 18 Sep. 2025
See All Example Sentences for semi
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Noun
Arsenal were great in the Champions League last season and had enough chances to beat eventual winners Paris Saint-Germain in the semi-finals.
—Dan Sheldon, New York Times, 21 Sep. 2025
The local schools with the most semi-finalists were Ardrey Kell High School, Myers Park High School and Charlotte Latin School.
—Rebecca Noel, Charlotte Observer, 19 Sep. 2025
Singh’s truck blocked both lanes of the northbound Turnpike, leading the Chrysler Town & Country minivan the three friends were riding in to slam into the semi’s 18-wheeler trailer, crumpling underneath it.
—Jacqueline Charles, Miami Herald, 18 Sep. 2025
In 2020, her first, The Blind Goat, was recognized as a semi-finalist for the James Beard Foundation's Best New Restaurant Award, per her website.
—Christopher Rudolph, PEOPLE, 18 Sep. 2025
See All Example Sentences for semi
Cite this Entry
“Semi.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/semi. Accessed 22 Sep. 2025.
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