Real Dictionary

immune
a system or structure of moving parts that performs some function, esp in a machine [...]
an immune person or animal [...]
close observation or supervision maintained over a person, group, etc, esp one in custody or under suspicion [...]
If you are immune to a particular disease, you cannot be affected by it.
resistance against danger, attack, or harm; protection [...]
the act of evading or escaping, esp from a distasteful duty, responsibility, etc, by trickery, cunning, or illegal means [...]
the act or process of regulating [...]
the state or quality of being tolerant [...]
to make active or capable of action [...]