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
The semitrailer then continued over the median into the northbound lanes, struck another semitrailer carrying gasoline and rolled onto its side, blocking both directions of I-25, according to the release.
—
Lauren Penington, Denver Post, 29 May 2025
The National Transportation Safety Board said driver fatigue and poor company oversight of its drivers also played key roles when the Greyhound bus exited Interstate 70 onto a rest area ramp east of St. Louis and struck three semitrailers parked on the shoulder.
—John O'Connor, Chicago Tribune, 21 May 2025
The semitrailer rolled onto its side, sending dimes cascading onto the road, Texas Department of Public Safety spokesperson Tony De La Cerda told The Messenger.
—Theresa Braine, New York Daily News, 30 Apr. 2025
Fans on the upper concourse have to stand in long lines waiting for concessions at the few available vendors, and while four loading docks may have been plenty for Manilow, Timberlake had 25 semitrailers full of equipment (not counting tour buses).
—Matt Craig, Forbes.com, 29 Apr. 2025
See All Example Sentences for semitrailer
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.
Lauren Penington, Denver Post, 29 May 2025
The National Transportation Safety Board said driver fatigue and poor company oversight of its drivers also played key roles when the Greyhound bus exited Interstate 70 onto a rest area ramp east of St. Louis and struck three semitrailers parked on the shoulder.
—John O'Connor, Chicago Tribune, 21 May 2025
The semitrailer rolled onto its side, sending dimes cascading onto the road, Texas Department of Public Safety spokesperson Tony De La Cerda told The Messenger.
—Theresa Braine, New York Daily News, 30 Apr. 2025
Fans on the upper concourse have to stand in long lines waiting for concessions at the few available vendors, and while four loading docks may have been plenty for Manilow, Timberlake had 25 semitrailers full of equipment (not counting tour buses).
—Matt Craig, Forbes.com, 29 Apr. 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 15 Jun. 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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share