Step 1: Meaning of a communication barrier:
A communication barrier is anything that stops a message from reaching the receiver, or changes its meaning on the way.
It breaks the flow between sender and receiver.
Step 2: Four common barriers:
1. Physical barrier: noise, distance, poor phone line or a faulty microphone hides the message.
2. Language barrier: difficult words, jargon or a different mother tongue stop the receiver from understanding.
3. Psychological barrier: stress, fear, anger or lack of interest make the receiver ignore or misread the message.
4. Cultural barrier: different customs, gestures and beliefs give the same words different meanings.
Final Answer:
Four communication barriers are physical (noise), language, psychological (emotional) and cultural barriers.