ax
background
construction
cut
danger
emergency
equipment
extinguish
extinguisher
extinguishing
fighter
fire
firefighter
fireman
flammable
hammer
handle
hardware
hatchet
heavy
helmet
hook
hydrant
industrial
inflammable
iron
label
ladder
metal
nozzle
pike
pressure
protection
safety
seal
set
sign
smoke
spray
stamp
steel
sticker
symbol
tool
uniform
urgency
weapon
wood
wooden
work