To make a sound of laughter.

हँसना

English Usage: They always laugh when they watch that comedy movie.

Hindi Usage: वे हमेशा उस कॉमेडी फिल्म को देखकर हँसते हैं।

A sound made by people when they find something funny.

हँसी

English Usage: Her laugh was contagious, making everyone around her smile.

Hindi Usage: उसकी हँसी संक्रामक थी, जिससे उसके चारों ओर सभी मुस्कराने लगे।