IPA: /ˈbʌtənˌbɔl/
KK: /ˈbʌtənˌbɔl/
A type of tree, specifically a sycamore, known for its distinctive leaves and bark.
The buttonball tree in the park provides shade during the hot summer days.
The word 'buttonball' is formed from 'button' (from Old French *bouton*, meaning a small knob or button) and 'ball' (from Old English *beall*, meaning a round object). The term 'buttonball' refers to a small, round object resembling a button, often used in games or as a toy.
Think of a 'small knob' ('button') that is 'round' ('ball') — that's why a buttonball is a small, round object.
No commonly confused words.