action
animal
art
ban
can
cartoons
cheerful
cleanliness
concepts
conservation
dirt
dirty
disgust
domestic
dont
dump
embargo
environment
environmental
food
forbiddance
fun
funny
garbage
happiness
head
home
hygiene
illustrations
kitchen
laziness
litter
mammal
messy
mud
nose
office
outdoors
pets
pig
pink
placard
prohibition
purity
rudeness
sign
smell
snout
social
symbol
taboo
tabu
unhygienic
unpleasant
warning