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boss 1

(bôs, bŏs)
a. An employer or supervisor.
b. One who makes decisions or exercises authority.
2. A professional politician who controls a party or a political machine.
tr.v. bossed, boss·ing, boss·es
To give orders to, especially in an arrogant or domineering manner: bossing us around.
adj. Slang
First-rate; topnotch.

[Dutch baas, master (from earlier, uncle); akin to Old High German basa, aunt.]

boss 2

 (bôs, bŏs)
1. A circular protuberance or knoblike swelling, as on the horns of certain animals.
2. A raised area used as ornamentation.
3. Architecture A raised ornament, such as one at the intersection of the ribs in a vaulted roof.
a. An enlarged part of a shaft to which another shaft is coupled or to which a wheel or gear is keyed.
b. A hub, especially of a propeller.
tr.v. bossed, boss·ing, boss·es
To emboss.

[Middle English boce, from Old French.]

boss 3

 (bôs, bŏs)
A cow or calf.

[Akin to English dialectal (southwest England) buss, boss, young calf and probably also to busk, calf remaining unweaned for too long, of unknown origin.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in classic literature ?
"Find some spot where I shall escape the indignity of being patronized and bossed by the superior sex."
It's Bossism that generates arrogance among the bosses and learned passivity among the bossed, along with fatalism or corrosive resentment.