abbreviation
aid
alarm
alert
assistance
attention
background
care
caution
concept
danger
design
emergency
flat
health
help
hotline
idea
inscription
lay
letters
life
made
message
nobody
object
protect
protection
red
rescue
rules
safe
safety
save
security
service
ship
sign
sos
souls
support
survival
symbol
text
top
urgency
view
warning
wooden
word