Defense vs Immunity vs Protection vs Resistance

When to use each in English, with meaning, register, and examples.

Defense

Top 1,000 (very common)B2noun

Immunity

Top 2,000 (common)

Protection

Top 1,000 (very common)B2noun

Resistance

Top 2,000 (common)C1noun
 DefenseImmunityProtectionResistance
Pronunciation🇬🇧 /["/dɪˈfens/"]/🇺🇸 /["/dɪˈfens/","/ˈdiːfens/"]/🇬🇧 //ɪˈmjuːn.ɪ.ti//🇺🇸 //ɪˈmjunɪti//🇬🇧 /["/prəˈtekʃn/"]/🇺🇸 /["/prəˈtekʃn/"]/🇬🇧 /["/rɪˈzɪstəns/"]/🇺🇸 /["/rɪˈzɪstəns/"]/
MeaningProtection from harm or danger.The ability of a person to resist disease.Keeping something safe from harm.The ability to fight back against something.
ExampleThe defense of the castle was stronger than ever after the recent upgrades.Vaccination enhances your immunity against viral infections.The protection of wildlife is essential for biodiversity.The resistance to the new policy was widespread among the employees.
RegisterNeutralNeutralNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)Top 1,000 (very common)Top 2,000 (common)
CEFR levelB2-B2C1
Part of speechnounnounnoun
Collocationsmilitary defense, legal defense, strong defense, defense strategy, defense mechanismimmune system, innate immunity, acquired immunity, immunity boost, herd immunityprovide protection, seek protection, get protection, legal protectionconsiderable, great, massive, mount, offer, put up, stiffen, collapse, crumble, movement, fighter, forces, without resistance, resistance against, resistance to, the line of least resistance, the path of least resistance, a pocket of resistance, considerable, great, massive, mount, offer, put up, stiffen, collapse, crumble, movement, fighter, forces, without resistance, resistance against, resistance to, the line of least resistance, the path of least resistance, a pocket of resistance, high, increased, low, have, build up, develop, resistance to
Antonymsattack, offense-exposure, riskcompliance, acceptance, submission
Common mistakesConfused with 'defence' in British English., Used as a verb instead of a noun., Mispronounced as 'dee-fense' instead of 'de-fense'.Confused with 'community' when spoken., Using 'immunity' in non-medical contexts., Mispronouncing the word, especially the 'nu' part.Confusing with 'protect', which is a verb., Using 'protection' without a specific context, like 'against threats'.Confused with 'resistant' which describes something that can withstand., Using 'resistance' without an object, which can make the sentence unclear., Mixing up synonyms and using them incorrectly in context.
Usage notesUsed in legal, sports, and military contexts. Avoid using in casual conversations that don't involve conflict or protection.Commonly used in medical or biological contexts. Avoid using in casual conversations unless discussing health.Use this word when discussing safety measures or legal shields. Not usually used in very casual speech.Use 'resistance' in contexts involving conflict or opposition. It's appropriate in discussions on politics, psychology, or physics. Avoid using it in informal situations without a clear context.

Frequently asked questions: Defense vs Immunity vs Protection vs Resistance

What's the difference between Defense, Immunity, Protection, and Resistance?

Defense: Protection from harm or danger. Immunity: The ability of a person to resist disease. Protection: Keeping something safe from harm. Resistance: The ability to fight back against something.

Which is more advanced: Defense, Immunity, Protection, and Resistance?

Resistance is the highest level, at C1, on the CEFR scale.

Can you show an example of each?

Defense: The defense of the castle was stronger than ever after the recent upgrades. Immunity: Vaccination enhances your immunity against viral infections. Protection: The protection of wildlife is essential for biodiversity. Resistance: The resistance to the new policy was widespread among the employees.

Can I use Defense, Immunity, Protection, and Resistance interchangeably?

Not always. Defense, Immunity, Protection, and Resistance are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.