abstain
access
alarm
alert
allowed
attention
backslash
bad
ban
black
button
circle
clip art
communication
danger
design element
drink
drinkable
drinking
faucet
forbid
forbidden
hazard
icon
illegal
illustration
information
label
no
non potable
not
outdoors
pictogram
prohibited
prohibitive
public places
refrain
risk
round
sign
signal
sticker
stop
street
symbol
tap
warning
water