IPA: /ˈkætʃər/
KK: /ˈkæʧər/
A person or thing that catches, particularly in baseball, where it refers to the player who stands behind home plate to receive pitches.
The catcher skillfully caught the fastball thrown by the pitcher.
Catcher → It is formed from "catch" (from Old English "ceacian", meaning to seize or capture) and "-er" (meaning a person who). A catcher is a person who seizes or captures something, typically in a game or sport context.
Think of someone who 'seizes' ('catch') something — the '-er' just means a person. A catcher is someone who captures or receives.