high ground
on the ground
ground laurel
high road
ground sloth
space force
neutral ground
high note
in the field
feet on the ground
upper storey
on the floor
heavy lifting
contact geometry
up in the air
up above
power level
float around
fall to the ground
blow the roof off
low-background lead
look up and down
front foot
inner source
outer core
top secret
down the road
high mass
angle of attack
touch grass
scale up
look up
right side
garden path
in the middle of
at the feet of
look around
complex geometry
all there
move forward
tract of land
front hole
over the top
top hand
off the top of one's head
step on
on the road
drop a brick
dig one's heels in
big-headed