asphalt
beefy
bouncing
bream
brush
brushing
clean
down
flatten
floor
flush
gear
hardy
hefty
level
machinery
mechanism
metal
mop
pointed
polish
prickly
rebuild
redo
remake
repair
rigid
rigorous
road
robust
roll
rotate
rub down
scar
scavenge
scour
scratch
scrub
sharp
smooth
spin
stiff
street
strong
sturdy
surface
sweep
top
tough
urbanization
wash
wheel
wipe
working