One who is captious, fallacious, or deceptive in argument.
One of a class of teachers of rhetoric, philosophy, and politics in ancient Greece.
A teacher who uses plausible but fallacious reasoning.
A young person who agitates for political or other reform; a young person with a rebellious disposition.
From the late-19th to the early-20th century, a member of a movement that campaigned for reform of the Ottoman Empire.