स

In a sentence

• सूरज सन्तोष लेकर आता है।

  The sun brings satisfaction.

  Here, 'स' acts as a prefix in 'सन्तोष', denoting completeness or wholeness.

• वह पूजा स आरम्भ करता है।

  He begins the worship with the 'स'.

  Here, 'स' is part of the object of the sentence and represents a symbolic or literal initiation.

• पक्षी स चीखते हैं।

  The birds chirp 'स'.

  Here, 'स' mimics the sound being described, representing onomatopoeia.