submarine

Dives and surfaces

A submarine is a vessel designed to operate underwater, used by navies for warfare and surveillance, and in civilian contexts for research and exploration.

The word also works as an adjective meaning underwater: submarine cables, submarine warfare.

As a verb, to submarine is to undermine or sabotage covertly.

A submarine sandwich—a sub—is a long sandwich on a cylindrical roll, named for its shape.

vessel

U-boat

Undersea warship from Germany

ballast · conning tower · hatch · propeller · sonar · diesel-electric · nuclear-powered · watertight · depth charge · pressure hull

sandwich

hoagie

Long filled sandwich

  • grinderCrushing or sharpening device
  • heroOne admired for courage
  • po'boyCrusty Louisiana sandwich

Italian · meatball · cheesesteak · turkey · roast beef · cold cuts · footlong · baguette · roll · deli

deepsea

abyss

Immeasurably profound depth

darkness · hydrothermal vent · bioluminescence · bathyscaphe · bathysphere · fathom · seafloor · deep-sea · exploration · Trieste

naval

fleet

Vehicles under unified command

carrier · battleship · frigate · cruiser · warship · admiral · commander · captain · sailor · convoy

stealth

silent running

Moving undetected, soundlessly

depth · hidden · clandestine · patrol · surveillance · infiltrate · ghost · hunter-killer · stalking · thermocline

Categories
Opposites
operating domain

submarineaircraft

Airborne transportation vehicle

airplane · warship · battleship · aircraft carrier · cruiser

vertical position

submarineabove water

Not submerged, financially viable

overhead · surface · aerial · airborne · topside

visibility/stealth

submarineantisubmarine

Countering underwater naval threats

aircraft carrier · patrol boat · coast guard cutter

Phrases
Family

submarines, submarined, submarining, submariner, submariners, antisubmarine

Familiarity
Top 10,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G