(bôs, bos) noun
1. U.S. Colloq. A superintendent or employer of workmen; manager; foreman.
2. Any employer or any director of the work of others.
3. U.S. An organizer or dictator of a political party. See synonyms under MASTER.
—adjective Being at the head of a working force; superintending; also, expert; master: boss shoemaker.
—v.t. & v.i.
1. To have control (of) or supervision (over).
2. To domineer. [<Du. baas master]
BOSS (def. 2)

(bôs, bos) noun
1. A circular prominence; a knob; stud.
2. Archit. An ornament, sometimes a pendant, at the intersection of the ribs of a groined arch, or in any similar position.
3. Mech. An enlargement of a shaft to couple with a wheel or another shaft.
4. Geol. A domelike mass of igneous rock.
—v.t.
1. To work with bosses.
2. To ornament with bosses. [<OF boce bump, knob]

(bos, bôs) noun
1. A calf or a cow.
2. A word used to call a calf or a cow. Also boss′y. [Cf. L bos cow]