आ

In a sentence

• आओ, मेला देखते हैं।

  Come, let's see the fair.

  Here, 'आ' is used as part of the imperative 'आओ', which is inviting someone to come.

• वो धीरे-धीरे हमारी ओर आ रहा है।

  He is slowly coming towards us.

  Here, 'आ' is used as part of the verb 'आ रहा', describing the act of coming.

• हर सुबह सूरज की किरणें खिड़की से अंदर आ जाती हैं।

  Every morning, the rays of the sun come inside through the window.

  Here, 'आ' is used as part of the verb 'आ जाती', conveying the movement of rays coming in.