answer
app
background
bad
black
button
cancel
choice
circle
close
cross
decline
delete
denied
deny
drawing
error
exit
fail
failure
false
flat
graphic
icon
illustration
incorrect
isolated
line
mark
negative
negativity
no
outline
pictogram
refuse
reject
rejection
remove
round
set
shape
sign
stop
symbol
test
vote
web
wrong
x