submarines

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  8. [watercraft by specific type]
  9. [watercraft by operating environment]
  10. [watercraft by displacement]
  11. subsurface watercraft
  12. submarines
Scope note
Vessels capable of continuous, extended underwater voyages under their own power without surfacing; often naval combatant vessels. For vessels capable of complete submersion for only limited amounts of time and which may or may not move under their own power, use "submersibles."
submarines
Accepted term: 01-Dec-2025