Defense vs Shields

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

Defense

Top 1,000 (very common)B2noun

Shields

Top 3,000 (common)
Most common: Defense
 DefenseShields
Pronunciation🇬🇧 /["/dɪˈfens/"]/🇺🇸 /["/dɪˈfens/","/ˈdiːfens/"]/🇬🇧 //ʃiːldz//🇺🇸 //ʃiːldz//
MeaningProtection from harm or danger.Protective devices or structures used to block attacks.
ExampleThe defense of the castle was stronger than ever after the recent upgrades.The soldiers raised their shields to defend against the arrows.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 3,000 (common)
CEFR levelB2-
Part of speechnoun
Collocationsmilitary defense, legal defense, strong defense, defense strategy, defense mechanismbody shields, energy shields, protective shields, shields up, shields of honor
Antonymsattack, offenseattacks, exposure
Common mistakesConfused with 'defence' in British English., Used as a verb instead of a noun., Mispronounced as 'dee-fense' instead of 'de-fense'.Confusing with 'shields' as a verb., Using 'shield' when referring to multiple shields instead of 'shields'.
Usage notesUsed in legal, sports, and military contexts. Avoid using in casual conversations that don't involve conflict or protection.Use 'shields' when discussing defense or protection. Avoid in informal settings unless referring to video games or superheroes.

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Defense
Shields

Frequently asked questions: Defense vs Shields

What's the difference between Defense and Shields?

Defense: Protection from harm or danger. Shields: Protective devices or structures used to block attacks.

Which is more common: Defense and Shields?

Defense is the most common in everyday English.

Can you show an example of each?

Defense: The defense of the castle was stronger than ever after the recent upgrades. Shields: The soldiers raised their shields to defend against the arrows.

Can I use Defense and Shields interchangeably?

Not always. Defense and Shields 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.

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