keel

Noun

• one of the main longitudinal beams (or plates) of the hull of a vessel; can extend vertically into the water to provide lateral stability

• the median ridge on the breastbone of birds that fly

• a projection or ridge that suggests a keel

Verb

• walk as if unable to control one's movements
  • The drunken man staggered into the room
    

Related words

• Synonyms: 
  stagger , reel , lurch , swag , careen