keel

Noun
  1. A projection or ridge that suggests a keel (synset 113942952)
    is a type of: projection - any solid convex shape that juts out from something
  2. The median ridge on the breastbone of birds that fly (synset 105235704)
    is a type of: carina - any of various keel-shaped structures or ridges such as that on the breastbone of a bird or that formed by the fused petals of a pea blossom
    is a part of: carinate, carinate bird, flying bird - birds having keeled breastbones for attachment of flight muscles
  3. One of the main longitudinal beams (or plates) of the hull of a vessel;
    Can extend vertically into the water to provide lateral stability (synset 103614755)
    is a type of: beam - long thick piece of wood or metal or concrete, etc., used in construction
    subtypes: bilge keel - either of two lengthwise fins attached along the outside of a ship's bilge; reduces rolling
    has: fin keel - a metal plate projecting from the keel of a shallow vessel to give it greater lateral stability
    is a part of: hull - the frame or body of ship
Verb
  1. Walk as if unable to control one's movements (synset 201928835)
    "The drunken man staggered into the room"
    is a type of: walk - use one's feet to advance; advance by steps
    same as: careen, lurch, reel, stagger, swag

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