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Meaning of SILL

Pronunciation:  sil

WordNet Dictionary
  1. [n]  structural member consisting of a continuous horizontal timber forming the lowest member of a framework or supporting structure
  2. [n]  (geology) a flat (usually horizontal) mass of igneous rock between two layers of older sedimentary rock

SILL is a 4 letter word that starts with S.


 See Also: doorsill, doorstep, rock, stone, structural member, threshold, windowsill



Webster's 1913 Dictionary
  1. \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
  2. \Sill\, n. [Cf. {Thill}.]
    The shaft or thill of a carriage. [Prov. Eng.]
  3. \Sill\, n. [Cf. 4th {Sile}.]
    A young herring. [Eng.]