燃やす
alarm
ax
axe
badge
banner
black
bone
brave
bravery
danger
dead
death
department
design
emblem
emergency
equipment
fighter
fire
firefighter
fireman
firemen
flame
graphic
head
heat
helmet
help
icon
illustration
isolated
label
logo
print
protection
rescue
retro
safety
sign
skeleton
skull
symbol
tool
uniform
vintage
volunteer
wooden