A projection or ridge that suggests a keel.

Roget 211: base, basement; plinth, dado, wainscot; baseboard, mopboard^†; bedrock, hardpan [U.S.]; foundation etc. (support) 215; substructure, substratum, ground, earth, pavement, floor, paving, flag, carped, ground floor, deck; footing, ground work, basis; hold, bilge.    bottom, nadir, foot, sole, toe, hoof, keel, root; centerboard.    ... show more

The median ridge on the breastbone of birds that fly.

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

Dutch: kiel, scheepskiel
Polish: stępka przechyłowa

Walk as if unable to control one's movements.

synonyms: careen, lurch, reel, stagger, swag.