absence
applicable
attention
avoidance
ban
button
cancel
circle
climate
closed
collage
color
colorful
design
element
flat
forbid
forbidden
gradient
heat
hot
icon
illegal
illustration
isolated
nature
negative
no
none
pattern
pictogram
prohibit
prohibited
prohibition
rain
remove
restrict
restricted
restriction
restrictive
rules
season
set
sign
stop
symbol
warning
weather
web