informal <非正式>
1
- a person who is in charge of a worker or organization老板, 上司, 领导, 工头：
her boss offered her promotion
她老板愿意给她升职
union bosses.
工会领导。
1.1
- a person in control of a group or situation头儿, 主儿：
does he see you as a partner, or is he already the boss?
他把你看成合伙人, 还是他已经是头儿了？
1.2
- usu. as modifier(in computer gaming) a particularly tough enemy, usually appearing at the end of a section or level（电脑游戏用语）头号敌人：
the boss characters provide more than enough challenge.
这些头号敌人角色提供了太多的挑战。
with obj.
- give (someone) orders in an annoyingly domineering manner发号施令：
you're always bossing us about.
你总是对我们发号施令。
短语
be one's own boss
- be self-employed自己当老板。
show someone who's boss
- make it clear that it is oneself who is in charge让别人明白是自己说了算：
now it's time to show her who's boss.
现在该让她明白是谁说了算。
词源
early 19th cent. (originally US)： from Dutch baas 'master'.
1
- a round knob, stud, or other projecting part, in particular瘤; 饰扣; 凸出物, 尤指：
1.1
- a stud on the centre of a shield盾牌的中心饰扣。
1.2
- Architecture a piece of ornamental carving covering the point where the ribs in a vault or ceiling cross【建筑】浮饰。
1.3
- Geology a large mass of igneous rock protruding through other strata【地质】岩瘤。
1.4
- the central part of a propeller（螺旋桨的）轮毂。
词源
Middle English: from Old French boce, of unknown origin.