line of defense

• حاجز أو استراتيجية أو مجموعة من الأشخاص تُستخدم للدفاع ضد هجوم أو نقد أو فشل، سواء كان ذلك حرفيًا أو مجازيًا، ويشيع استخدامها في السياقات العسكرية والرياضية والأمن السيبراني.

A metaphorical or literal barrier, strategy, or group of people used to protect against attack, criticism, or failure. Often used in military, sports, or cybersecurity contexts.

1. Military positionB2formal

   A position or arrangement of troops and fortifications designed to protect against enemy attack.

   خط الدفاع

   • The army established a strong line of defense along the river.
   • The enemy breached the first line of defense.
   • They fortified the second line of defense with additional troops.

2. Immune responseB2formal

   The body's system of cells and mechanisms that protect against infection and disease.

   خط الدفاع

   • White blood cells form the first line of defense against infections.
   • Vaccines help strengthen the body's second line of defense.
   • The skin acts as a physical line of defense against pathogens.

3. Argument or strategyC1formal

   A set of arguments or strategies used to protect an idea, position, or decision.

   خط الدفاع

   • Her first line of defense in the debate was to cite reliable sources.
   • The company's line of defense against the lawsuit was strong.
   • He prepared multiple lines of defense for his argument.