"Privacy" means being able to control who knows personal information about you. People talk about "privacy" in these ways:

• We talk about "having some privacy" and "giving" someone some privacy:

  Can I have some privacy please? (Said angrily at a family member who comes into your bedroom)

  I'll give you guys some privacy.

• We also say that you should "respect" someone's privacy:

  There is no defense for my actions, which I deeply regret, and I ask that you respect our privacy at this very difficult time. (said by a famous person who did something bad)

• Americans mostly believe that we "have a right to privacy", which means that our privacy shouldn't be taken away by the government or by other people.
• People sometimes talk about "privacy issues" and "privacy concerns"

  We don't store that information due to privacy concerns.