abstract
admonish
alarm
alert
allowed
attention
badge
ban
beware
camera
careful
caution
circular
communication
danger
design
forbid
forbidden
graphic
hazard
icon
illegal
illustrate
indication
information
isolated
law
no
notice
photo
photograph
photographing
pictogram
pictures
prohibited
protection
protest
public
restrict
restriction
risk
rule
shooting
sign
stop
symbol
text
warning
zone