i Register
In some senses, chuckle is marked as archaic, obsolete. Watch for register when choosing this word.
noun
A quiet laugh.
verb
To laugh quietly or inwardly.
To communicate through chuckling.
She chuckled her assent to my offer as she got in the car.
To make the sound of a chicken; to cluck.
To call together, or call to follow, as a hen calls her chickens; to cluck.
if these Birds are within distance, here's that will chuckle 'em together
To fondle; to indulge or pamper.
adj
Clumsy.