Radicals: One who advocates fundamental or revolutionary changes
in current practices, conditions, or institutions
Example: Charles Darwin
Extremists: One who advocates or resorts to measures beyond the
norm, especially in politics
Example: *shrugs* i hate politics
Terrorists:One that engages in acts or an act of terrorism
Terrorism: The unlawful use or threatened use of force or violence
by a person or an organized group against people or property with
the intention of intimidating or coercing societies or governments,
often for ideological or political reasons.
Guerilla: A member of an irregular, usually indigenous military or
paramilitary unit operating in small bands in occupied territory to
harass and undermine the enemy, as by surprise raids.
Militants: Having a combative character; aggressive, especially in
the service of a cause: a militant political activist.
So to sum it up
Radicals: talk a lot.
Extremists: Recommend a lot.
Terrorists: I whack you a lot for no reason that you know.
Guerilla: I whack you because you attack my home.
Militants: You dont come near me or i whack you ok.
Oh, and if Guerilla is the same as a Terrorist...
We happen to venerate a Terrorist as a national hero.
His name is Lim Bo Seng, a member of Force 136.
What's in a name? A rose....