aid
assistance
belt
blue
buoy
circle
concepts
danger
device
emergency
equipment
float
hand
help
insurance
isolated
life
lifebuoy
lifesaver
nobody
object
orange
pool
preserve
protect
protection
red
render
rescue
ring
rope
round
safe
safety
save
saver
sea
secure
security
services
ship
single
sos
support
survival
swimming
travel
water