a member of an anti-aristocratic political group in Thessalonica from 1342 until 1350
a member of a radical, warlike, ardently patriotic group of Jews in Judea, particularly prominent from a.d. 69 to 81, advocating the violent overthrow of Roman rule and vigorously resisting the efforts of the Romans and their supporters to heathenize the Jews
one who espouses a cause or pursues an object in an immoderately partisan manner
one who is zealous, one who is full of zeal for his own specific beliefs or objectives, usually in the negative sense of being too passionate; a fanatic
disapproval If you describe someone as a zealot, you think that their views and actions are very extreme, especially in following a particular political or religious belief. He was forceful, but by no means a zealot. someone who has extremely strong beliefs, especially religious or political beliefs, and is too eager to make other people share them (zelotes, from zelos; ZEAL)
a member of an ancient Jewish sect in Judea in the first century who fought to the death against the Romans and who killed or persecuted Jews who collaborated with the Romans
One who is zealous; one who engages warmly in any cause, and pursues his object with earnestness and ardor; especially, one who is overzealous, or carried away by his zeal; one absorbed in devotion to anything; an enthusiast; a fanatical partisan