nicotine
abstain
advice
alert
area
attention
avoid
ban
banner
bathroom
caution
cigar
do not
forbidden
funny
health
humor
indoor
interdiction
interior
lavatory
no
no smoking
no smoking sign
notice
paper
placard
prohibit
prohibited
prohibition
public
refuse
rejection
restricted
restroom
roll
seat
service
sign
signboard
smoke
smoker
sticker
stop
symbol
tobacco
toilet
warning
washroom
zone