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
Frederick Melo, Twin Cities, 30 Apr. 2026
Congestion also has consequences for semi-trucks loaded with freight.
—Charles Selle, Chicago Tribune, 29 Apr. 2026
Meanwhile, there could be some intermittent shutdowns because part of the semi’s trailer was pushed half a mile down the tracks.
—Kansas City Star, 28 Apr. 2026
The truck was located in Port Wentworth, Georgia, but Gonzalez was not with the semi, the FBI said.
—David Goodhue, Miami Herald, 28 Apr. 2026
See All Example Sentences for semi
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Noun
The board held first-round interviews with the firm’s recommended semi-finalists in late March, and finalists were announced on March 26.
—Frederick Melo, Twin Cities, 30 Apr. 2026
Congestion also has consequences for semi-trucks loaded with freight.
—Charles Selle, Chicago Tribune, 29 Apr. 2026
Meanwhile, there could be some intermittent shutdowns because part of the semi’s trailer was pushed half a mile down the tracks.
—Kansas City Star, 28 Apr. 2026
The truck was located in Port Wentworth, Georgia, but Gonzalez was not with the semi, the FBI said.
—David Goodhue, Miami Herald, 28 Apr. 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 2 May. 2026.
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