sill

1. n. 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. Source: opted

2. n. The timber or stone at the foot of a door; the threshold. Source: opted

3. n. The timber or stone on which a window frame stands; or, the lowest piece in a window frame. Source: opted

4. n. The floor of a gallery or passage in a mine. Source: opted

5. n. A piece of timber across the bottom of a canal lock for the gates to shut against. Source: opted

6. n. The shaft or thill of a carriage. Source: opted

7. n. A young herring. Source: opted

8. n. structural member consisting of a continuous horizontal timber forming the lowest member of a framework or supporting structure Source: wordnet

9. n. (geology) a flat (usually horizontal) mass of igneous rock between two layers of older sedimentary rock Source: wordnet

10. 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. The shaft or thill of a carriage. [Prov. Eng.] A young herring. [Eng.] Source: webster

11. The basis or foundation of a thing; especially, a horizontalpiece, as a timber, which forms the lower member of a frame, orsupports a structure; as, the sills of a house, of a bridge, of aloom, 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, thelowest 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 gatesto shut against. Sill course (Arch.), a horizontal course of stone,terra cotta, or the like, built into a wall at the level of one ormore window sills, these sills often forming part of it. Source: adambom

12. n:100 n. structural member consisting of a continuous horizontal timber forming the lowest member of a framework or supporting structure n. (geology) a flat (usually horizontal) mass of igneous rock between two layers of older sedimentary rock Source: ecdict

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