Indicating a relationship of inclusion or association.

साथ

English Usage: She came with her friend to the party.

Hindi Usage: वह पार्टी में अपने दोस्त के साथ आई।

An activity involving mental or emotional engagement.

रुचि

English Usage: She has a deep interest in painting.

Hindi Usage: उसकी पेंटिंग में गहरी रुचि है।

To attract or engage someone's attention or curiosity.

दिलचस्पी लेना

English Usage: The new book interested him greatly.

Hindi Usage: नई किताब ने उसे बहुत दिलचस्पी दी।