Definitions

1. verb

to laugh or make a high-pitched, nervous sound, often in a suppressed or stifled manner.

“The audience began to titter at the comedian’s witty joke.”

2. noun

a high-pitched, nervous sound, especially one of suppressed laughter.

“The titter of amusement filled the room.”

3. noun

a small, high-pitched sound, often indicating nervousness or anxiety.

“The titter of the crowd’s reaction was audible.”