To maintain a state of composure or calmness.

संयम बनाए रखना

English Usage: It's important to keep cool during stressful situations.

Hindi Usage: तनावपूर्ण परिस्थितियों में संयम बनाए रखना महत्वपूर्ण है।

A state of being calm or composed.

शांति या ठंडापन

English Usage: He remained in a state of cool even when provoked.

Hindi Usage: वह उकसाए जाने पर भी शांति में रहा।