from The American Heritage® Dictionary of the English Language, 4th Edition
- intransitive v. To laugh with repeated short, spasmodic sounds.
- transitive v. To utter while giggling.
- n. A short, spasmodic laugh.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To laugh gently or in a high-pitched voice; to laugh in a silly or giddy way.
- n. A high-pitched, silly laugh.
- n. Amusement.
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To laugh with short catches of the breath or voice; to laugh in a light, affected, or silly manner; to titter with childish levity.
- n. A kind of laugh, with short catches of the voice or breath; a light, silly laugh.
from The Century Dictionary and Cyclopedia
- To laugh with short catches of the breath or voice; laugh in a silly or affected manner; titter.
- n. A low, spasmodic, affected laugh, in a series of short gasps or catches of the breath.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. laugh nervously
- n. a foolish or nervous laugh
Of imitative origin.(American Heritage® Dictionary of the English Language, Fourth Edition)