Definition of party boss
: the person with the most power in a political party or one branch of a political party During the campaign, no one was willing to stand up to the party boss.
Word by Word Definitions
: a person who exercises control or authority
: one who directs or supervises workers
: one who controls votes in a party organization or dictates appointments or legislative measures
: excellent, first-rate
: to exercise control or authority over : to act as boss (see 3boss) of
: cow, calf
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