A two-stroke engine. / A vehicle or machine powered by a two-stroke engine. / The fuel used in a two-stroke engine. / (Australia, slang) Coca-Cola.

The cardinal number immediately following fifty-one and preceding fifty-three.

The cardinal number immediately following seventy-one and preceding seventy-three.

The cardinal number immediately following eighty-one and preceding eighty-three.

The cardinal number immediately following sixty-one and preceding sixty-three.

The cardinal number immediately following ninety-one and preceding ninety-three.

The cardinal number after thirty-one and before thirty-three.

(baseball) A two-seam fastball.

(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.