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
Brian Brant, Peoplemag, 29 May 2024
The semi's trailer tank, which was about a quarter full of milk, stopped on its side behind the semi's cab.
—Drew Dawson, Journal Sentinel, 11 Mar. 2024
The semi was engulfed in flames when police and fire crews responded around 4:30 a.m.
The fire was quickly put out and contained to the cab of the semi.
—Jennifer Edwards Baker, The Enquirer, 11 June 2024
Authorities say Heflin jumped out and climbed onto the hood of the semi as police swarmed her and took her into custody.
—Nathan Solis, Los Angeles Times, 23 May 2024
See all Example Sentences for semi 
Noun
The driver of the semi was treated and released from an area hospital.
—Brian Brant, Peoplemag, 29 May 2024
The semi's trailer tank, which was about a quarter full of milk, stopped on its side behind the semi's cab.
—Drew Dawson, Journal Sentinel, 11 Mar. 2024
The semi was engulfed in flames when police and fire crews responded around 4:30 a.m.
The fire was quickly put out and contained to the cab of the semi.
—Jennifer Edwards Baker, The Enquirer, 11 June 2024
Authorities say Heflin jumped out and climbed onto the hood of the semi as police swarmed her and took her into custody.
—Nathan Solis, Los Angeles Times, 23 May 2024
See all Example Sentences for semi
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'semi.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near semi
Cite this Entry
“Semi.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/semi. Accessed 4 Jul. 2024.
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