3d
alarm
allowed
authorized
background
ban
banner
blunder
bug
button
danger
error
exclamation
expired
fail
failure
false
forbidden
icon
illustration
isolated
keep out
late
logo
mark
mistake
no
not
oops
point
problem
prohibited
restricted
restriction
road
safety
security
sign
signs
sorry
stop
surprise
surprised
symbol
warning
web
white
wonder
wrong
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