ground-effect vehicle
ground-effect machine
ground troops
ekranoplan
air support
excavating machine
plant
signal cabin
ground food
groundworker
prepare the way
ground man
grade-constructed
Broken Arrow
blitter
military
proving ground
tool
shield
machinal
deadline
pile driver
Data Communications Equipment
downer
surface-to-surface missile
run
Data Carrier Equipment
boots on the ground
landing field
street level
automation
dirt track
model aircraft
simple machine
toggler
drive
mechanic
landborne
open
back-engineer
finisher
automative
PTO
machinic
jig borer
ceiler
power takeoff
rotavator
antiattrition
platform