Giggle

to giggle
Meaning: 

to laugh in a nervous, excited, or silly way that is difficult to control

EG

The children giggle all the way through class.

She giggles at the slightest little thing.

Part of Speech: 
verb - intransitive
Pronunciation: 

/ˈɡɪɡ(ə)l/

Grammar: 
Regular verb: Past simple: giggled Past participle giggled
Word Family: 
a giggle (noun singular); the giggles (noun plural)
Examples: 

He tried to suppress a giggle.

The girl had a fit of giggles.