adult
auto
bleach
business
car
caucasian
clean
cleaner
cleaning
cleanliness
concrete
dirty
equipment
filth
foam
guy
hard hat
high
hose
hosepipe
industrial
industry
janitor
jet
job
labor
laborer
male
man
middleaged
pavement
power
pressure
puttering
safety vest
sanitation
service
spear
spray
spring
vehicle
wash
washer
washing
water
wet
work
worker
yard
yellow