燃やす
accident
activating
alarm
alert
alertness
arm
black and white
building
button
call
clip art
control
disaster
door
doorway
emergency
fingers
fire
fire alarm
flame
handle
hazard
hotel
industrial
install
office
press
pull
red
rescue
room
safe
safety
secure
security
sign
siren
start
switch
symbol
system
trigger
wall
warning