Immunity

The body's ability to resist a particular infection or harmful agent.

Reach for it when discussing biological protection without claiming absolute safety

The study measures how long immunity remains after the final dose.

• everyday

  defense

  the body's protective response is described as a system

  not when Defense is metaphorical and does not identify immune status precisely.

• everyday

  protection

  broad reduction of risk is the honest claim

  not when Protection can come from barriers or behavior rather than immunity.

• professional

  resistance

  reduced susceptibility is the measured biological property

  not when Resistance may be partial and can arise without immune memory.

Protection from a legal duty, penalty, or process.

Reach for it when naming a formally granted exemption in legal or institutional contexts

The agreement offered limited immunity for truthful testimony.

• professional

  indemnity

  protection from specified financial loss or liability is meant

  not when Indemnity usually concerns compensation, not freedom from prosecution.

• formal

  exemption

  a rule or obligation does not apply in this case

  not when Exemption is broader than immunity and may be administrative rather than legal.

• formal

  safe conduct

  official protection permits passage or participation

  not when Safe conduct is narrow and does not erase wider legal liability.

• susceptibility
• vulnerability
• liability

• lasting immunity

  Researchers have not yet established whether the response gives lasting immunity.

• herd immunity

  The lecture explained herd immunity without presenting it as protection for every individual.

• grant immunity

  Only the authorized court may grant immunity under the agreement.

The biological sense does not imply complete or permanent protection; duration and degree depend on the specific disease and immune response.