A sound that is reflected off a surface and returns to the source.

A repeat or resurgence of something after a period of absence.

पुनरावृत्ति

English Usage: The back echo of his former popularity was evident when he returned to the stage.

Hindi Usage: जब वह मंच पर लौटे, तो उनकी पूर्व लोकप्रियता की पुनरावृत्ति स्पष्ट थी।

To mirror or reflect a sound.

To repeat or reinforce an idea or sentiment.

विचार या भावना को पुनरावृत्ति करना

English Usage: His speech back echoed the sentiments of the crowd.

Hindi Usage: उसके भाषण ने भीड़ की भावनाओं को पुनरावृत्ति किया।