tit·ter /ˈtɪtɚ/
嗤笑,偷笑(vi.)吃吃地笑,偷笑
Tit·ter v. t. [imp. & p. p. Tittered p. pr. & vb. n. Tittering.] To laugh with the tongue striking against the root of the upper teeth; to laugh with restraint, or without much noise; to giggle.
A group of tittering pages ran before. --Longfellow.
Tit·ter, n. A restrained laugh. “There was a titter of . . . delight on his countenance.”
Tit·ter, v. i. To seesaw. See Teeter.
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titter
n : a nervous restrained laugh
v : laugh nervously; "The girls giggled when the rock star came
into the classroom" [syn: giggle]