Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Transportation Vehicles (hierarchy name)
5. vehicles (transportation)
6. watercraft
7. [watercraft by specific type]

Narrower term/s

• houseboats[+]
  • shanty boats
• ceremonial watercraft[+]
  • barges (ceremonial watercraft)
• hunting and commercial fishing vessels[+]
  • fishing vessels [+]
    • [fishing vessels by form] [+]
      • Cape Cod catboats [NP]
      • fishing schooners [+]
      • Friendship sloops [NP]
      • Muscongus Bay sloops [NP]
      • Woods Hole spritsail boats [NP]
      • bomschuits
      • bezaanschuits
      • tjotters
      • Antwerp knots
      • botters
    • [fishing vessels by function] [+]
      • dredging vessels [+]
      • line fishing vessels [+]
      • net fishing vessels [+]
      • trapping vessels [+]
      • sponge boats
      • aaks (flat-bottomed watercraft) [NP]
  • gunning boats [+]
    • bushwack boats
    • rail skiffs
    • sneak boxes
  • whaling vessels [+]
    • factory ships
    • whale catchers
    • whaleboats
    • whaleships
• [competition and recreation craft][+]
  • yachts [+]
    • daysailers
    • sport fishing vessels [+]
      • bassboats
      • guideboats [+]
      • sportfishermen
    • runabouts (motorboats) [NP]
  • competition craft [+]
    • class boats [+]
      • one-designs
      • development class boats
    • raceboats
  • pleasure craft
• merchant vessels[+]
  • [merchant vessels by cargo type] [+]
    • cargo vessels [+]
      • lighters (watercraft)
      • tankers (cargo vessels) [+]
      • bulk carriers [+]
      • container ships
      • tramps (vessels) [NP]
      • Ro/Ros
      • slavers
      • aaks (flat-bottomed watercraft) [NP]
      • tjalks
    • passenger vessels [+]
      • excursion boats
      • ocean liners
      • cruise ships
  • [merchant vessels by type of service] [+]
    • ferries (vessels) [+]
      • car ferries
      • veerwagens
      • train ferries
    • corbitae [NP]
    • towboats
    • liners (merchant vessels)
    • tramps (vessels)
    • cogs (watercraft) [NP]
    • pontones [NP]
• naval ships[+]
  • warships [+]
    • triremes [NP]
    • escort vessels
    • amphibious warships [+]
      • amphibious assault ships
    • mine warfare ships [+]
      • minesweepers
      • minelayers
    • [patrol and intelligence vessels] [+]
      • motor torpedo boats
      • picket boats
      • surveying vessels
    • rams (warships)
    • warships carrying projectile weapons [+]
      • battleships
      • aircraft carriers
      • cruisers
      • destroyers
      • frigates
      • bomb vessels
      • dromons
      • gunboats
      • subsurface combatants [+]
      • davids
      • sloops (warships)
      • ships of the line
    • penteconters [NP]
    • biremes [NP] [+]
      • liburnians
    • quadriremes [NP]
    • quinqueremes [NP]
  • naval auxiliary ships [+]
    • oilers
    • hospital ships
    • transport vessels [+]
      • transports (naval vessels)
      • horse transports
• training ships
• [utility and service vessels][+]
  • pilot boats
  • assistance vessels [+]
    • tugboats
    • salvage vessels
  • communications vessels [+]
    • cable ships
  • emergency vessels [+]
    • fireboats
    • lifeboats [+]
      • surfboats [+]
      • life cars
      • rescue lifeboats
  • [harbor and channel craft] [+]
    • icebreakers
    • dredgers (watercraft)
  • law enforcement vessels [+]
    • revenue cutters
  • research vessels
  • tenders (utility vessels) [+]
    • ships' boats [+]
      • dinghies [+]
      • lifeboats [NP] [+]
      • barges (ships' boats)
      • gigs (watercraft)
      • jolly boats (watercraft)
      • longboats
      • launches
      • yawl boats
      • yawls (ships' boats)
      • pinnaces
      • cutters (ships' boats)
      • Banks dories [NP]
    • water boats
    • bumboats
  • hulks (utility and service vessels)
  • utility boats
• floating mills [NP]
• lightships
• rumrunners
• packet ships