The word 'communication' is derived from the Latin word 'communis' which means 'to transmit', 'to impart', 'to exchange', 'to share', or 'to convey'.

Communication means "the imparting or exchanging of information by speaking, writing, or using some other medium." (Oxford English Dictionary)

Communication helps us to understand others. The inability to communicate can lead to a lot of problems both personally and professionally.

A student may possess good knowledge and may be ready to convey it but if he does not know how to do it, it would not be effective. Poor speaking or writing skills is a real hurdle in communication.

A student, who lives in a hostel, wants some money. So he writes a letter to his father asking him to send him money. The father sends money, along with a letter cautioning his child to be careful while spending it. In both cases (sending the money and sending the letter), the father is responding to the communication initiated by his child.