the act of noticing or perceiving something through watching

देखना (Dekhna)

English Usage: The observed time of the event was later than expected.

Hindi Usage: घटना का देखा गया समय अपेक्षित से बाद में था।

to watch carefully, especially for the purpose of learning

ध्यान से देखना (Dhyan se dekhna)

English Usage: The scientists observed time dilation during their experiments.

Hindi Usage: वैज्ञानिकों ने अपने प्रयोगों के दौरान समय का फैलाव देखा।