giggle

Từ điển WordNet v3.1 - WordNet Dictionary

I - noun

a foolish or nervous laugh (Freq. 1)
• Hypernyms:
laugh, laughter

II - verb

laugh nervously (Freq. 4)
- The girls giggled when the rock star came into the classroom
• Syn:
titter
• Derivationally related forms:
titterer (for: titter), titter (for: titter), giggler
• Hypernyms:
laugh, express joy, express mirth
• Verb Frames:
- Somebody ----s