(baseball, slang) A double (a two-base hit). / (running, slang) A two-miler when running miles for conditioning.

(euphemistic, usually childish) Feces; the act of defecation. / (nautical, slang) A first mate. / A primary assistant; vice-leader.

The cardinal number occurring after one hundred ninety-nine and before two hundred one, represented in Arabic numerals as 200.

(Canada, slang) A case of twenty-four bottles or cans of beer.

(chiefly Canada, US) A length of sawn wood of cross section approximately 2 inches by 4 inches, most often employed as structural framing lumber (dimension or dimensional lumber).

(of a highway) Allowing traffic in two directions. / (of traffic, visibility) Moving or occurring in opposite directions.

(Cincinnati) A serving of Cincinnati chili with spaghetti.

(idiomatic, Britain) very common; cheap

(of an edged weapon etc) having two cutting edges / (by extension) having two, often contrasting, meanings or interpretations

Having two legs or feet. / (sports) Ambidextrous of the feet; having equal ability with either foot. / (soccer) Using both feet.