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
Joseph O'Sullivan, Forbes, 5 Nov. 2024
Scenes can be ambitious, such as one where a U.S.-style semi truck with a long nose barrels down a road toward an unknowing child.
—John Hopewell, Variety, 27 Nov. 2024
The rider and the motorcycle fell into the No. 3 lane, underneath a passing semi, the CHP said.
—Harry Harris, The Mercury News, 7 Nov. 2024
According to the Arizona Department of Public Safety, the contents of the semi have yet to be identified.
—Karen Bartunek, The Arizona Republic, 19 Oct. 2024
See all Example Sentences for semi 
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Noun
Peñarol were the only non-Brazilian or Argentinian team of eight tournament semi finalists this year.
—Joseph O'Sullivan, Forbes, 5 Nov. 2024
Scenes can be ambitious, such as one where a U.S.-style semi truck with a long nose barrels down a road toward an unknowing child.
—John Hopewell, Variety, 27 Nov. 2024
The rider and the motorcycle fell into the No. 3 lane, underneath a passing semi, the CHP said.
—Harry Harris, The Mercury News, 7 Nov. 2024
According to the Arizona Department of Public Safety, the contents of the semi have yet to be identified.
—Karen Bartunek, The Arizona Republic, 19 Oct. 2024
See all Example Sentences for semi
Dictionary Entries Near semi
Cite this Entry
“Semi.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/semi. Accessed 21 Dec. 2024.
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