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
Harriet Ramos, Fort Worth Star-Telegram, 18 July 2025
Valderrama, 70, was killed at around 6:20 a.m. when a 2013 white Freightliner semi truck struck him on I-75 southbound near Weston, FHP said.
—Grethel Aguila, Miami Herald, 13 July 2025
Erin Zeigler, a spokesperson for TDOT, said the semi was carrying electrical parts.
—Craig Shoup, The Tennessean, 11 July 2025
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
See All Example Sentences for semi
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Noun
The semi struck the bus, which rolled over on the right side.
—Harriet Ramos, Fort Worth Star-Telegram, 18 July 2025
Valderrama, 70, was killed at around 6:20 a.m. when a 2013 white Freightliner semi truck struck him on I-75 southbound near Weston, FHP said.
—Grethel Aguila, Miami Herald, 13 July 2025
Erin Zeigler, a spokesperson for TDOT, said the semi was carrying electrical parts.
—Craig Shoup, The Tennessean, 11 July 2025
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
See All Example Sentences for semi
Cite this Entry
“Semi.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/semi. Accessed 25 Jul. 2025.
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