1. (

• keel

) a projection or ridge that suggests a keel ;

2. (

• keel

) the median ridge on the breastbone of birds that fly ;

3. (

• keel

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

1. (

• stagger ,
• reel ,
• keel ,
• lurch ,
• swag ,
• careen ,

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