• noun
• synonym
• antonym

• verb
• synonym
• antonym

• bilge keel (noun)
  1. either of two lengthwise fins attached along the outside of a ship's bilge; reduces rolling
• drop keel (noun)
  1. a retractable fin keel used on sailboats to prevent drifting to leeward
• fin keel (noun)
  1. a metal plate projecting from the keel of a shallow vessel to give it greater lateral stability
• keel arch (noun)
  1. a pointed arch having an S-shape on both sides
• keel over (verb)
  1. turn over and fall
• keel-shaped (adjective)
  1. shaped in the form of the keel of a boat
• sliding keel (noun)
  1. a retractable fin keel used on sailboats to prevent drifting to leeward
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