- snotty
- sowbelly
- spake
- spar-deck
- southing
- span
- spanker
- spar
- speak
- spend
- spinnaker
- squadron
- square
- splice
- spoken
- square-rigged
- starboard
- squirm
- stand
- stay
- steerage-way
- step
- steady
- steerage
- steeve
- stem
- stern
- stern chase
- stern foremost
- stopper
- stern chaser
- stern-fast
- stern-way
- sternmost
- sternward
- stick
- stop
- straddle
- strake
- sternwards
- stood
- stretch
- submarine
- submarine chaser
- strop
- sublieutenant
- stuck
- studding-sail
- stunsail
- suit
- surge
- swab
- sweep
- swept
- swing
- swob
- swung
- tartan
- taunt
- taut
- tauten
- tack
- tackle
- tarpaulin
- tender
- thimble
- three-master
- tilt
- tog
- toggle
- topmast
- tormentor
- touch
- track
- trade
- trader
- topgallant
- topmark
- tramp
- trice
- trick
- trimming
- trim
- trip
- traverse
- tug
- trimmer
- tub
- tugboat
- turtle
- unbend
- unbent
- undazzled
- two-masted
- two-master
- twin-crew
- underran
- underrun
- undertow
- unlash