semi trucks

Big freight vehicles

Semi trucks are large commercial vehicles consisting of a tractor unit that pulls a detachable trailer.

The name comes from "semi-trailer"—the trailer has wheels only at the rear and depends on the tractor for front support.

Also called eighteen-wheelers, big rigs, or simply semis: A semi truck jackknifed on the highway.

Related

tractors · axles · air brakes · weigh stations · weigh in · diesel fuel · big rigs · wide load · hitches · highways · sleeper cab · long haul · open road · tractor-trailer · fifth wheel · jackknife · Peterbilt · rest stops

Categories
Opposites
vehicle size and capacity

semi trucksmotorcycles

Motorized two-wheeled vehicles

mopeds · scooters · bicycles · golf carts · delivery vans

commercial vs. personal use

semi truckspassenger cars

Vehicles for transporting people

family cars · commuter cars · recreational vehicles · sports cars · daily drivers

vehicle complexity and articulation

semi trucksunicycles

Single-wheeled pedaled vehicles

skateboards · wagons · handcarts · wheelbarrows

Family

semi, truck, trucks, semis, trucker, truckers, trucking, trucked

Familiarity
Top 100,000
Profile
Known to kids · Mostly American · Timeless · Concrete · Everyday, not technical · Rated G