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
Jack Lang, New York Times, 25 Mar. 2026
The show has four rounds– blind auditions, battle rounds, knockout and semi-finals.
—Ella Gonzales
march 24, Fort Worth Star-Telegram, 24 Mar. 2026
Or consider the over-the-road owner-operator who still has a monthly truck payment even though their semi is halfway to a million miles.
—Edward Lotterman, Twin Cities, 22 Mar. 2026
Officers are unsure what caused the semi to overturn, but said that the thick liquid began to flow out of the trailer and quickly spread, creating an inch-thick layer of syrup across the westbound lanes.
—Dean Fioresi, CBS News, 17 Mar. 2026
See All Example Sentences for semi
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Noun
The remaining four sides must face off in two single-legged semi-finals to reach that stage.
—Jack Lang, New York Times, 25 Mar. 2026
The show has four rounds– blind auditions, battle rounds, knockout and semi-finals.
—Ella Gonzales
march 24, Fort Worth Star-Telegram, 24 Mar. 2026
Or consider the over-the-road owner-operator who still has a monthly truck payment even though their semi is halfway to a million miles.
—Edward Lotterman, Twin Cities, 22 Mar. 2026
Officers are unsure what caused the semi to overturn, but said that the thick liquid began to flow out of the trailer and quickly spread, creating an inch-thick layer of syrup across the westbound lanes.
—Dean Fioresi, CBS News, 17 Mar. 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 29 Mar. 2026.
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