[{"Bold_text": "noun", "List Items": ["a person or thing that catches .", "Baseball.the player stationed behind home plate, whose chief duty is to catch not hit by the batter.", "a member of an aerialist team, as in a circus, who hangs head down from a trapeze and catches another member who has completed a jump or somersault through the air.", "Metalworking.a person who feeds metal rods through a looping mill.", "catch·er res·o·na·tor[kach, -er rez-, uh, -ney-ter].Electronics.Klystron"]}]