big rig

noun

plural big rigs

US

: a large truck with an attached trailer that is used for hauling freight : semitrailer sense 2

A father and grandfather, Brubaker worked behind the wheel of a big rig for over a decade before transferring to a supervisory role.

—Deirdre Reilly

He formerly drove a big rig for a freight company.

—Jim Kleinpeter

Examples of big rig in a Sentence

Recent Examples on the Web

The announcement came after a major chain-reaction crash near Blue Canyon on Tuesday involving two big rigs and 10 other vehicles that closed westbound Interstate 80 for about 16 hours. — Nicole Buss, Sacbee.com, 23 July 2026

Cars, trucks, and big rigs sit in various states of disassembly as engineers test and validate software designed to turn otherwise ordinary machines into rolling robots. — Reed Albergotti, semafor.com, 21 July 2026

Most of the first episode gives us Lucky on the run, getting out of the hotel and out of Vegas, and across the tops of a field of big rigs. — Robert Lloyd, Los Angeles Times, 15 July 2026

With Lucky both chasing Cary and being pursued by her powerful enemies, action scenes are frequent and dynamic; an early one has her darting between big rigs parked tightly together at a truck stop. — Judy Berman, Time, 15 July 2026

Word History

First Known Use

1946, in the meaning defined above

Rhymes for big rig

• renege
• big
• brig
• brigg
• dig
• fig
• gig
• jig
• mig
• pig
• prig
• sprig

Kids Definition

big rig

noun

: semitrailer sense 2