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
Northbound Interstate 25 was closed for more than five hours Wednesday morning after two semitrailers crashed near Fort Collins in northern Colorado, according to state officials.
—
Lauren Penington, Denver Post, 15 Apr. 2026
Canned or jarred groceries will quickly reach a 40,000-pound limit, but corn chips or saltines may fill the 4,000-cubic-foot volume limit of a semitrailer before the weight limit is reached.
—Edward Lotterman, Twin Cities, 12 Apr. 2026
In 2018, a semitrailer truck collided with a bus carrying a youth hockey team to a playoff game in western Canada, killing 16 people and injuring several others.
—ABC News, 23 Mar. 2026
Hyundai Translead, North America’s leading semitrailer builder, struck an agreement with the state to establish major new manufacturing facilities in Will County, creating close to 2,500 new Illinois jobs.
—The Editorial Board, Chicago Tribune, 23 Mar. 2026
See All Example Sentences for semitrailer
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Lauren Penington, Denver Post, 15 Apr. 2026
Canned or jarred groceries will quickly reach a 40,000-pound limit, but corn chips or saltines may fill the 4,000-cubic-foot volume limit of a semitrailer before the weight limit is reached.
—Edward Lotterman, Twin Cities, 12 Apr. 2026
In 2018, a semitrailer truck collided with a bus carrying a youth hockey team to a playoff game in western Canada, killing 16 people and injuring several others.
—ABC News, 23 Mar. 2026
Hyundai Translead, North America’s leading semitrailer builder, struck an agreement with the state to establish major new manufacturing facilities in Will County, creating close to 2,500 new Illinois jobs.
—The Editorial Board, Chicago Tribune, 23 Mar. 2026
See All Example Sentences for semitrailer
Cite this Entry
“Semitrailer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/semitrailer. Accessed 18 Apr. 2026.
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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