These are the most frequently used words in this book.
air
always
ascent
bc
boat
body
bottom
breathe
breathing
buddy
buoyancy
check
come
compass
conditions
control
coral
course
currents
decompression
deep
depth
different
dive
divers
diving
down
enough
equipment
especially
even
feel
feet
find
fins
first
gear
get
go
good
group
hand
help
hold
keep
know
less
let
light
limits
line
little
live
livers
living
long
look
mask
may
might
minutes
need
new
nitrogen
note
once
place
pressure
problem
regulator
repetitive
safety
scuba
sea
second
see
should
site
snorkel
start
stay
stop
suit
sure
surface
tables
take
tank
things
time
try
two
underwater
use
want
water
weights
wet
wreck
yourself