Read the dictionary definition of keel. All definitions for this word.
1. one of the main longitudinal beams (or plates) of the hull of a vessel; can extend vertically into the water to provide lateral stability
2. the median ridge on the breastbone of birds that fly
3. a projection or ridge that suggests a keel
4. walk as if unable to control one's movements
1. The drunken man staggered into the room