अय

In a sentence

• अय, अपने काम को संतोषपूर्वक पूरा करो।

  Oh, complete your work satisfactorily.

  The word अय is used as an interjection here to draw attention or exclamation.

• अय मित्र, क्या आप ठीक हैं?

  Oh friend, are you alright?

  Here, अय is utilized to address someone kindly or empathetically.

• अय हृदय, अपने भावों पर विचार करो।

  Oh heart, reflect on your emotions.

  In this sentence, अय is poetically addressing an inner sentiment or personification directly.