What is the meaning of restrict?

verb

• Place restrictions on.
  • usage: "curtail drinking in school"
  • synonyms: curtail, curb, cut back
• Place under restrictions; limit access to.
  • usage: "This substance is controlled"
• Place limits on (extent or access. )
  • usage: "restrict the use of this parking lot"; "limit the time you can spend with your friends"
  • synonyms: restrain, trammel, limit, bound, confine, throttle
• Make more specific.
  • usage: "qualify these remarks"
  • synonyms: qualify