Reply (verb)

1. To respond or answer in speech or writing to a person or a question.
2. To return an answer or a message in response to a previous message or request.
3. To take or give an answer or response to a question or a situation.
4. To react or respond in a certain way to a particular situation or action.
5. To echo or repeat a sound or statement.

Origin:

The word 'reply' comes from the old french word 'replier' which means 'to fold back.'.

Examples:

1. She replied to his email with a message of her own.
2. He replied to the reporter's question with a smile.
3. The company replied to my complaint with a letter of apology.
4. I replied to her offer with a counter-offer.
5. The microphone replied to the speaker's voice with an echo.