X-craft
sub
auxiliary research submarine
sub tender
minisubmarine
silent service
submarine
submarinelike
bubble-head
submarining
supersub
Perisher
submariner
attack submarine
autosub
nuclear-powered submarine
nautilus
nuclear submarine
soucoupe
subaquarian
subchaser
crash dive
mesoscaphe
subtransect
U-boat
hunter-killer
antisubmarine
sail
U-boater
anti-submarine rocket
oceanaut
fin
submersible
hydroplane
warcraft
dinette
milch cow
mid-ocean ridge
submersible warship
aviso
Sherwood Forest
receiving ship
fleet ballistic missile submarine
submarinist
surface ship
minisub
ship of the line
man-of-war
shipboard duty
service abroad
third-rate
snort
sea-duty
skimmer
bubblehead
Argonaut
APSS
submarine torpedo
naval radar
collier
diving plane
forebody
pressure hull
USO
search
underbottom
conning tower
rating
stern plane
fourth-rate
submarine chaser
Schnorchel
NUWC
Naval Underwater Warfare Center
battlewagon
transport ship
deadworks
wolfpack
guard ship
bow plane
blockade-runner
design depth
capital ship
maxi yacht
squadron
crewman
naval unit
hatch
sailor