protective

adjective

1. intended or designed to keep someone or something safe from harm, damage, or disease

   B1

   usually before a noun

   • "You should wear protective gloves when you clean the oven."A2
   • "The new regulations require protective measures around dangerous machinery."B2
   • "The trees provide a protective barrier against the wind."B2

2. wanting to keep someone safe and showing care for them, sometimes in a way that limits their freedom

   B2

   often in "be protective of someone/something"

   • "She is very protective of her little sister."B1
   • "He became protective when strangers approached his children."B2
   • "The company has become fiercely protective of its public image."C1