دفاع

In a sentence

• او از خودش دفاع کرد.

  He defended himself.

  The word 'دفاع' (defense) in this sentence is used as a noun within the verb 'دفاع کردن' (to defend), indicating the act of protecting oneself.

• دفاع از دوست در مواقع سخت بسیار ارزشمند است.

  Defending a friend in difficult times is very valuable.

  Here, 'دفاع' signifies acting in defense of another, carrying a connotation of support and care.

• تیم ملی در نیمه‌ی دوم بازی به دفاع پرداخت.

  The national team focused on defense during the second half of the game.

  In this example, 'دفاع' refers to a technical term in sports, specifically the strategic action to prevent the opposing team from scoring.