- rough-tree
- rough-tree timber
- round
- round-aft
- round and grape
- round dozen
- round-house
- round-in, to
- rounding
- rounding-up
- roundly
- round-ribbed
- round robbin
- rounds
- round seam
- round seizing
- round shot
- rounds of the galley
- round splice
- round stern
- round the fleet
- round-to, to
- round-top
- round-turn in the hawse
- round up of the transoms
- roundure
- rouse, to
- rouse and bit
- roust
- rout
- route
- routine
- rove
- rovens
- rover
- roving commission
- row, to
- row dry!
- rowed of all!
- row in the same boat, to
- rowl
- rowle
- rowlocks
- row-ports
- royal
- royal fish
- royal marine artillery
- royal marines
- royal merchant
- royal mortar
- royal naval reserve
- royals
- royal standard
- royal yacht
- royal yacht club
- royal yard
- roynes
- rubber
- rubble-work
- ruble
- rudder
- rudder braces
- rudder bands or braces
- rudder-case
- rudder-chains
- rudder-chalder
- rudder-chocks
- rudder-coat
- rudder-gudgeon
- rudder-head
- rudder-horn
- rudder-house
- rudder-irons
- rudder-pendants
- rudder-pintles
- rudder-rake
- rudder-stock
- rudder-tackles
- rudder-trunk
- ruffle
- rufflers
- rule of thumb
- rules of the sea
- rule-staff
- rumbelow
- rumbo
- rum-gagger
- rummage
- run
- run, clean
- run of the ice
- run, to lower by the
- run athwart a ship's course, to
- run away with her anchor
- run away with it!
- rundle
- run down a coast, to
- run down a vessel, to
- rune
- rungs