911
alarm
alert
attention
blue
bulb
caution
closeup
color
danger
design
emergency
equipment
fire
fire brigade
firefighter
fireman
firetruck
flash
flasher
flashing
horn
ladder
lamps
light
object
protection
realistic
red
rescue
roof
rotating
safety
security
shiny
sign
signal
siren
sound
symbol
traffic
transport
truck
urgency
vehicle
warn
warning
water