semitrailer
noun
semi·trail·er
ˈse-ˌmī-ˌtrā-lər 
ˈse-mē-,
-mi-
plural semitrailers
1
: a freight trailer that when attached is supported at its forward end by the fifth wheel device of the truck tractor
2
: a trucking rig made up of a tractor and a semitrailer
called also big rig
Examples of semitrailer in a Sentence
Recent Examples on the Web
All lanes are closed on eastbound Interstate 94 at M-14 after a semitrailer rolled over and crashed this morning in Scio Township.
—
Emma George-Griffin, Freep.com, 22 Sep. 2025
An Amtrak conductor was injured Tuesday morning when his passenger train collided with a semitrailer northeast of Denver, according to Colorado State Patrol.
—Lauren Penington, Denver Post, 16 Sep. 2025
According to the criminal complaint, witnesses said that Tipantuna Quinchiguano crashed his 2008 Chevrolet Equinox into the couple’s 2018 Chevrolet Malibu and pushed the sedan into the left lane in front of a semitrailer.
—Nick Ferraro, Twin Cities, 16 Sep. 2025
When semitrailers drive down more residential roads, the noise is more prominent for residents, according to Jill Capicchioni of Riverworks.
—Everett Eaton, jsonline.com, 11 Sep. 2025
See All Example Sentences for semitrailer
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Emma George-Griffin, Freep.com, 22 Sep. 2025
An Amtrak conductor was injured Tuesday morning when his passenger train collided with a semitrailer northeast of Denver, according to Colorado State Patrol.
—Lauren Penington, Denver Post, 16 Sep. 2025
According to the criminal complaint, witnesses said that Tipantuna Quinchiguano crashed his 2008 Chevrolet Equinox into the couple’s 2018 Chevrolet Malibu and pushed the sedan into the left lane in front of a semitrailer.
—Nick Ferraro, Twin Cities, 16 Sep. 2025
When semitrailers drive down more residential roads, the noise is more prominent for residents, according to Jill Capicchioni of Riverworks.
—Everett Eaton, jsonline.com, 11 Sep. 2025
See All Example Sentences for semitrailer
Cite this Entry
“Semitrailer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/semitrailer. Accessed 1 Oct. 2025.
Copy CitationKids Definition
semitrailer
noun
semi·trail·er
ˈsem-i-ˌtrā-lər
ˈsem-ˌī-
1
: a freight trailer that when attached is supported at its forward end by the truck tractor
2
: a trucking rig made up of a tractor and a semitrailer
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