ˌse-mē,
-ˌmī,
-mi
1
a
: precisely half of:
(1)
: forming a bisection of
semicircle
(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-
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
Abigail Adams, PEOPLE, 18 May 2026
Ten competitors were eliminated from the original group of 35 in the semi-finals earlier this week.
—Chloe Veltman, NPR, 16 May 2026
Liguori Academy, a 2024 Yass Prize semi-finalist, is one of these schools.
—Kerry McDonald, Forbes.com, 15 May 2026
Tickets for the semi-finals and the championship are available on the Cowtown Coliseum's website.
—Madison Sawyer, CBS News, 12 May 2026
See All Example Sentences for semi
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show current usage.
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Noun
The driver of the semi was pronounced dead at the scene, the outlets reported.
—Abigail Adams, PEOPLE, 18 May 2026
Ten competitors were eliminated from the original group of 35 in the semi-finals earlier this week.
—Chloe Veltman, NPR, 16 May 2026
Liguori Academy, a 2024 Yass Prize semi-finalist, is one of these schools.
—Kerry McDonald, Forbes.com, 15 May 2026
Tickets for the semi-finals and the championship are available on the Cowtown Coliseum's website.
—Madison Sawyer, CBS News, 12 May 2026
See All Example Sentences for semi
Cite this Entry
“Semi.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/semi. Accessed 21 May. 2026.
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