IPA: /ˈsɔːtfɔːl/
KK: /ˈsɔftˌbɔl/
A game similar to baseball that is played on a smaller field with a larger, softer ball, typically pitched underhand.
She plays softball every Saturday with her friends.
Softball → It is formed from "soft" (from Old English "softe", meaning not hard or firm) and "ball" (from Old English "beall", meaning a spherical object). The word "softball" refers to a type of ball that is softer than a traditional baseball, used in a sport similar to baseball.
Think of something that is 'not hard' ('soft') and a 'spherical object' ('ball') — that's why softball is a sport played with a softer ball.
No commonly confused words.