alert
approval
assurance
beware
business
caution
concept
conceptual
confirmation
confirmed
control
denial
denied
deny
design
document
effect
element
grunge
hold
imprint
ink
isolated
mark
offering
plank
prohibited
prohibition
proposal
quality
rectangle
red
refuse
reject
rejected
related
rubber
scratch
simple
stamp
stop
symbol
tag
text
warning
watermark
white