燃やす
accident
alarm
alert
caution
danger
emergency
engine
equipment
escape
exit
extinguisher
fire
flame
flammable
hazard
health
heat
help
hose
icon
illustration
isolated
label
precaution
protection
red
rescue
risk
safe
safety
seal
security
service
set
sign
signal
splash
sticker
symbol
urgency
warning
water