IPA: /ˈtʃʌk.lər/
KK: /ˈtʃʌk.lɚ/
A person who laughs quietly or softly, often in a way that shows amusement or enjoyment.
The chuckler in the corner couldn't help but laugh at the funny story.
Chuckler → The word is formed from "chuckle" (of imitative origin, representing a low, quiet laugh) and "-er" (meaning a person who). A chuckler is a person who chuckles or laughs quietly.
Think of someone who makes a low, quiet laugh — that's what a chuckler does.