aid
assistance
background
belt
blue
buoy
circle
cruise
danger
float
guard
help
insurance
isolated
life
lifebelt
lifebuoy
lifeguard
lifesaver
marine
mergency
nautical
object
ocean
pool
preserve
preserver
protection
red
rescue
rescuer
ring
risk
rope
round
rubber
safety
save
saver
sea
security
ship
sky
sos
support
survival
swim
swimming
water
white