access
advice
allowed
alphabet
area
background
ban
barrier
blocked
capital
direction
door
electrical
emergency
enter
entrance
entry
escape
evacuation
exit
fire
forbidden
hazard
help
icon
label
liberty
low
no
not
only
outlet
pedestrian
personal
prohibited
protection
restriction
safety
security
set
sign
space
stairway
sticker
stop
symbol
traffic
warning
way
zone