18-wheeler
18-wheeler noun: a big rig truck: a semi-trailer plus the truck or tractor pulling it.
Noun
18-wheeler (plural 18-wheelers)
- A big rig truck: a semi-trailer plus the truck or tractor pulling it.
- On a cold morning in Abilene, Texas, a column of 18-wheelers crawls down bumpy, waterlogged roads, past cattle grazing on dusty shrubs.2025 December 11, Charlie Campbell, Andrew R. Chow and Billy Perrigo, “The Architects of AI Are TIME’s 2025 Person of the Year”, in Time
- Synonyms:
- semi-trailer truck, semi truck, semi, articulated lorry, artic, big rig, juggernaut, tractor-trailer, truck and trailer
Synonyms of 18-wheeler
Forms of 18-wheeler
| plural | 18-wheelers |
|---|---|
| alternative form | eighteen-wheeler |
Origin of 18-wheeler
From the total number of wheels: two front steering wheels on the tractor, plus dual wheels on each end of two axles (total of 8) at the rear of the tractor and supporting the front of the trailer, plus dual wheels on two axles at the rear of the trailer.
Questions about 18-wheeler
- What does 18-wheeler mean?
- 18-wheeler means a big rig truck: a semi-trailer plus the truck or tractor pulling it.
- What part of speech is 18-wheeler?
- 18-wheeler is a noun.
- What is the plural of 18-wheeler?
- The plural of 18-wheeler is 18-wheelers.
Words near 18-wheeler in the dictionary
Source and license
Adapted from Wiktionary: 18-wheeler (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
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Cite this entry: “18-wheeler.” Word.ws, https://word.ws/18-wheeler. Based on Wiktionary, CC BY-SA 4.0.