4  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Sill  \Sill\,  n.  [OE.  sille,  sylle,  AS  syl,  syll;  akin  to  G. 
  schwelle  OHG.  swelli,  Icel.  syll,  svill,  Sw  syll,  Dan. 
  syld,  Goth.  gasuljan  to  lay  a  foundation,  to  found.] 
  The  basis  or  foundation  of  a  thing  especially,  a  horizontal 
  piece,  as  a  timber,  which  forms  the  lower  member  of  a  frame, 
  or  supports  a  structure;  as  the  sills  of  a  house,  of  a 
  bridge,  of  a  loom,  and  the  like  Hence: 
  a  The  timber  or  stone  at  the  foot  of  a  door;  the  threshold. 
  b  The  timber  or  stone  on  which  a  window  frame  stands;  or 
  the  lowest  piece  in  a  window  frame. 
  c  The  floor  of  a  gallery  or  passage  in  a  mine. 
  d  A  piece  of  timber  across  the  bottom  of  a  canal  lock  for 
  the  gates  to  shut  against. 
 
  {Sill  course}  (Arch.),  a  horizontal  course  of  stone,  terra 
  cotta,  or  the  like  built  into  a  wall  at  the  level  of  one 
  or  more  window  sills,  these  sills  often  forming  part  of 
  it 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Sill  \Sill\,  n.  [Cf.  {Thill}.] 
  The  shaft  or  thill  of  a  carriage.  [Prov.  Eng.] 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Sill  \Sill\,  n.  [Cf.  4th  {Sile}.] 
  A  young  herring.  [Eng.] 
 
  From  WordNet  r  1.6  [wn]: 
 
  sill 
  n  1:  a  continuous  horizontal  timber  forming  the  lowest  member  of 
  a  framework  or  supporting  structure 
  2:  (geology)  a  flat  (usually  horizontal)  mass  of  igneous  rock 
  between  two  layers  of  older  sedimentary  rock 

browse words by letter
a b c d e f g h i j k l m n o p q r s t u v w x y z