Immunity (noun)

1. The ability of an organism to resist disease or infection.
2. An exemption from certain duties or liabilities granted by a government or other authority.
3. A privilege or right granted to a person, group, or organization.

Origin:

Late 16th century, from latin immunitas, from immunis "free, exempt".

Examples:

1. People who have recovered from a disease can have some immunity to it.
2. The diplomat was given immunity from prosecution.
3. The company was granted immunity in exchange for providing information.
4. Vaccines can provide immunity to many diseases.
5. Her immunity from prosecution gave her the confidence to speak out.