SILL

Pronunciation (US):

 Dictionary entry overview: What does sill mean? 

• SILL (noun)
  The noun SILL has 2 senses:

1. structural member consisting of 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

  Familiarity information: SILL used as a noun is rare.

 Dictionary entry details 

• SILL (noun)

Meaning:

Structural member consisting of a continuous horizontal timber forming the lowest member of a framework or supporting structure

Classified under:

Nouns denoting man-made objects

Hypernyms ("sill" is a kind of...):

structural member (support that is a constituent part of any structure or building)

Hyponyms (each of the following is a kind of "sill"):

doorsill; doorstep; threshold (the sill of a door; a horizontal piece of wood or stone that forms the bottom of a doorway and offers support when passing through a doorway)

windowsill (the sill of a window; the horizontal member at the bottom of the window frame)

Meaning:

(geology) a flat (usually horizontal) mass of igneous rock between two layers of older sedimentary rock

Classified under:

Nouns denoting natural objects (not man-made)

Hypernyms ("sill" is a kind of...):

rock; stone (a lump or mass of hard consolidated mineral matter)

Domain category:

geology (a science that deals with the history of the earth as recorded in rocks)