The Clue
Highway jackknifer (4 letter answer)
The Answer
SEMI
Tags
Notes
The answer SEMI is seen frequently, appearing about once every 60 puzzles.
Related Clues
Trailer
18-wheeler
Automatic start
Big rig
Big truck
Conductor's intro
Conductor's start?
Convoy component
Highway behemoth
Highway hauler
Interstate sight
Interstate truck
Kind of finals
Kind of truck
Partly: Prefix
Prefinal game
Prefix with circle
Prefix with conductor
Prefix with tone
Quarter follower
Teamster's rig
Tractor-trailer
Trailer-truck
Truck rig
Truck of a sort
Trucker's rig
Trucking rig
One of two for four
Vehicle or prefix
Big truck, for short
Final Four game
Freight trailer, for short
Freight truck, for short
Hard-to-turn vehicle
Large truck, for short
Many-axled vehicle
Rest stop sight
Truck type, for short
Trucker's rig, for short
This might be in for the long haul
Definition
SEMI as a noun:
1. (semifinal, semi) = one of the two competitions in the next to the last round of an elimination tournament
2. (trailer truck, tractor trailer, trucking rig, rig, articulated lorry, semi) = a truck consisting of a tractor and trailer together
3. (semitrailer, semi) = a trailer having wheels only in the rear; the front is supported by the towing vehicle