titter (titters plural & 3rd person present) (tittering present participle) (tittered past tense & past participle )If someone titters, they give a short nervous laugh, especially when they are embarrassed about something. verb
(=snigger)
Mention sex therapy and most people will titter in embarrassment. V
Titter is also a noun., n-count
Mollie gave an uneasy little titter.
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tittering n-uncount
There was nervous tittering in the studio audience.