active
activity
advertisement
architect
blank
builder
character
construction
contractor
cute
effort
empty
engineer
hardhat
hat
headwear
helmet
human
illustration
industrial
industry
information
lean
leaning
lift
manga
mascot
message
move
moving
notice
occupation
on
pose
power
press
professional
pull
push
pushing
repairman
safety
simplicity
space
strength
uniform
work
worker
workman