"keels" in the noun sense

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

"keels" in the verb sense

1. stagger, reel, keel, lurch, swag, careen

walk as if unable to control one's movements

"The drunken man staggered into the room"

Source: WordNet® (An amazing lexical database of English)

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