aid
berth
bright
building
buoy
color
disaster
donut
drowning
float
flotation
gates
hanging
health
help
inflatable
life
lifebelt
lifebuoy
lifering
lifesaver
lifetube
marine
mean
nobody
orange
outdoors
outside
precautions
preserver
protect
protection
rescue
ring
rope
round
safe
safety
save
saver
saving
secure
sink
sos
survival
swim
swimming
water
wheely
wooden