Pronunciation: (chuk'ul), [key]
—v., chuck•led, chuck•ling,
1. to laugh softly or amusedly, usually with satisfaction: They chuckled at the child's efforts to walk.
2. to laugh to oneself: to chuckle while reading.
3. Obs.to cluck, as a fowl.
1. a soft laugh, usually of satisfaction.
2. Obs.the cluck of a hen.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.