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  1. spine
    IPA[spīn]
  2. noun

    • 1. a series of vertebrae extending from the skull to the small of the back, enclosing the spinal cord and providing support for the thorax and abdomen; the backbone:

      a soft voice that sent a shiver down her spine
    • 2. a thing's central feature or main source of strength:

      players who will form the spine of our team
    • 3. resolution or strength of character.

      Synonym : strength of character, strength of will, firmness of purpose, firmness, resolution, resolve, determination, fortitude, mettle, moral fiber, backbone, steel, nerve, spirit, pluck, pluckiness, courage, courageousness, bravery, braveness, valor, manliness, guts, grit, spunk, bottle, balls
    • 4. the part of a book's jacket or cover that encloses the inner edges of the pages, facing outward when the book is on a shelf and typically bearing the title and the author's name.

    • 5. any hard, pointed defensive projection or structure, such as a prickle of a hedgehog, a spike-like projection on a sea urchin, a sharp ray in a fish's fin, or a spike on the stem of a plant.

      Synonym : needle, quill, bristle, barb, spike, prickle, thorn, spicule, spicula, spiculum, spinule
    • 6. a tall mass of viscous lava extruded from a volcano:

      the Mt. Pelee spine was exceptional only for its extreme height—over 300 meters
  3. Variation

    • n.: noun: spine, plural noun: spines

    • noun

      a series of vertebrae extending from the skull to the small of the back, enclosing the spinal cord and providing support for the thorax and abdomen; the backbone:

      the central feature or main source of strength of something:

    • adjective

      thrilling or pleasurably frightening:
    • adjective

      inspiring terror or terrified excitement:
    • noun

      a story or movie that inspires terror and excitement:
    • verb

      rest or spend time in an aimless, idle way:
    • noun

      an instance or period of resting:
    • adjective

      thrilling or pleasurably frightening:
    • adjective

      (of a story or film) inspiring terror and excitement:
    • noun

      a story or film that inspires terror and excitement:
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