Meaning ofblockerin English

Noun

1. something that obstructs or prevents; an obstacle
2. a defensive batter; low-scoring player
3. one who blocks an opponent; impedes movement
   The defensive player acted as a blocker to stop the opponent's advance.
4. an application; prevents unauthorized access
   The company installed a blocker to prevent employees from accessing social media.
5. a computing application restricting access
   The new blocker software restricted access to certain websites on the network.
6. a medication inhibiting chemical messengers (or receptors)
   The doctor prescribed a blocker to reduce the patient's blood pressure.