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
Robert A. Cronkleton, Kansas City Star, 19 June 2025
The Lions losses were to Redondo inthe CIF-SS Division 1 team semis and to Mira Costa.
—Steve Fryer, Oc Register, 18 June 2025
An image from a TxDOT traffic camera showed a jackknifed semi truck at the scene.
—Fousia Abdullahi, Fort Worth Star-Telegram, 16 June 2025
Quarterfinals and semis are Tuesday, with the final Wednesday afternoon.
—Bill Center, San Diego Union-Tribune, 22 May 2025
See All Example Sentences for semi
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Noun
The semi and tanker trailer rolled over, blocking the tracks that run parallel to Missouri 45, Shanks said.
—Robert A. Cronkleton, Kansas City Star, 19 June 2025
The Lions losses were to Redondo inthe CIF-SS Division 1 team semis and to Mira Costa.
—Steve Fryer, Oc Register, 18 June 2025
An image from a TxDOT traffic camera showed a jackknifed semi truck at the scene.
—Fousia Abdullahi, Fort Worth Star-Telegram, 16 June 2025
Quarterfinals and semis are Tuesday, with the final Wednesday afternoon.
—Bill Center, San Diego Union-Tribune, 22 May 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 8 Jul. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share