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  1. Dictionary
    sill
    /sɪl/

    noun

    • 1. a shelf or slab of stone, wood, or metal at the foot of a window opening or doorway.

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    More definitions, origin and scrabble points

  2. dictionary.cambridge.org › dictionary › englishSILL | English meaning - Cambridge Dictionary

    Sill is a noun that can mean a flat piece of wood, stone, etc. that forms the base of a window or door, or a layer of rock that is created when hot melted rock forces itself into spaces between other rock. Learn more about the meaning, pronunciation and usage of sill with examples and translations.

  3. www.merriam-webster.com › dictionary › sillSill Definition & Meaning - Merriam-Webster

    Learn the meaning of sill as a horizontal piece, a threshold, or a rock formation. See examples, synonyms, etymology, and related words for sill.

  4. www.dictionary.com › browse › sillSILL Definition & Meaning | Dictionary.com

    Sill definition: a horizontal timber, block, or the like serving as a foundation of a wall, house, etc.. See examples of SILL used in a sentence.

  5. dictionary.cambridge.org › us › dictionarySILL | definition in the Cambridge English Dictionary

    SILL meaning: 1. a flat piece of wood, stone, etc. that forms the base of a window or door 2. a flat piece of…. Learn more.

  6. www.collinsdictionary.com › dictionary › englishSILL definition and meaning | Collins English Dictionary

    noun. 1. a heavy, horizontal timber or line of masonry supporting a house wall, etc. 2. a horizontal piece forming the bottom frame of the opening into which a window or door is set. 3. Geology.

  7. www.thefreedictionary.com › sillSill - definition of sill by The Free Dictionary

    Sill can mean a horizontal member of a window frame, a shelf, a foundation, or a type of igneous rock. Learn the different meanings, synonyms, and translations of sill from various sources.

  8. www.vocabulary.com › dictionary › sillSill - Definition, Meaning & Synonyms | Vocabulary.com

    Definitions of sill. noun. structural member consisting of a continuous horizontal timber forming the lowest member of a framework or supporting structure. see more. noun. (geology) a flat (usually horizontal) mass of igneous rock between two layers of older sedimentary rock. see more. Pronunciation. US. /sɪl/ UK. /sɪl/ Cite this entry. Style: MLA.