titter

US /ˈtɪt̬.ɚ/
UK /ˈtɪt̬.ɚ/
1.

เครื่องไตเติ้ล

to laugh nervously, often at something that you feel you should not be laughing at:

:
A couple of the younger teachers tittered at his dirty jokes.
1.

เครื่องไตเติ้ล

a nervous laugh, often at something that you feel you should not be laughing at:

:
The love scene raised a few titters from a group of 10-year-olds.