the act of observing something over a period of time

the action of supervising someone or something

पर्यवेक्षण

English Usage: The experiment was conducted under close supervision.

Hindi Usage: प्रयोग निकट पर्यवेक्षण के तहत किया गया था।

to watch carefully and attentively

to observe and check the progress of something over a period

निगरानी करना

English Usage: The teacher will monitor the students during their exam.

Hindi Usage: शिक्षक परीक्षा के दौरान छात्रों की निगरानी करेंगे।