defense

noun:the action of defending from or resisting attack
- The army was mobilized for the defense of the capital.
noun:something used to protect against attack, such as a structure or a strategy
- The castle's high walls were its main defense.
noun:the case presented by or on behalf of the party being accused or sued in a court of law
- The lawyer presented a compelling defense for her client.
noun:the military and industrial resources of a country for protecting itself
- The government increased spending on national defense.
noun:an argument or justification in support of something
- She wrote a passionate defense of free speech.
noun:the biological mechanisms, such as the immune system, that protect an organism from disease and infection
- Vaccinations help train the body's defense to recognize and fight specific viruses.
noun:the players on a sports team who are tasked with preventing the opposition from scoring
- The team's defense was strong, allowing very few goals.