A person who laughs nervously or in a restrained manner.

A person who snickers or laughs in a disparaging way.

एक व्यक्ति जो तिरस्कारपूर्ण तरीके से हंसता है।

English Usage: The titterer could not hide their contempt during the presentation.

Hindi Usage: तित्टराने वाला प्रस्तुति के दौरान अपनी अवहेलना नहीं छिपा सका।