1. [n]  a racing shell propelled by one or two oarsmen pulling two oars
2. [n]  one of a pair of short-handled oars
3. [n]  a long-handled oar mounted at the stern of a boat and moved left and right to propel the boat forward
4. [v]  propel (a boat) with sculls

SCULL is a 5 letter word that starts with S.

1. \Scull\, n. (Anat.)
   The skull. [Obs.]
   
   

2. \Scull\, n. [See 1st {School}.]
   A shoal of fish. --Milton.
   
   

3. \Scull\, n. [Of uncertain origin; cf. Icel. skola to
   wash.]
   1. (Naut.)
      (a) A boat; a cockboat. See {Sculler}.
      (b) One of a pair of short oars worked by one person.
      (c) A single oar used at the stern in propelling a boat.
   
   2. (Zo["o]l.) The common skua gull. [Prov. Eng.]
   
   

4. \Scull\, v. t. [imp. & p. p. {Sculled}; p. pr. & vb. n.
   {Sculling}.] (Naut.)
   To impel (a boat) with a pair of sculls, or with a single
   scull or oar worked over the stern obliquely from side to
   side.
   
   

5. \Scull\, v. i.
   To impel a boat with a scull or sculls.