1. (noun) keel
a projection or ridge that suggests a keel
2. (noun) keel
the median ridge on the breastbone of birds that fly
3. (verb) 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
4. (verb) stagger, reel, keel, lurch, swag, careen
walk as if unable to control one's movements
Synonyms: stagger, pitch, spin around, keel, careen, gyrate, spin, droop, swag, tilt, shift, skunk, wobble, whirl, distribute, lurch, flag, prowl, sag, flounder, reel
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Synonyms and Antonyms of keel 
