防衛

In a sentence

• 国は防衛のために新しいシステムを導入しました。

  The country implemented a new system for defense.

  Here, "防衛" is used in its literal sense, meaning defense, referring to the action of protecting a country or place.

• 彼女の意見に対する防衛はとても論理的でした。

  Her defense of her opinion was very logical.

  In this context, "防衛" is used metaphorically to mean the act of defending an argument or viewpoint.

• 防衛本能は自然界の生物に普遍的なものです。

  The defense instinct is universal among living organisms in the natural world.

  Here, "防衛" describes a natural instinct related to self-preservation or protection among living organisms.