The term 'CATCHER's putdown' refers to a phrase or comment made by a CATCHER in baseball to distract the batter. It is usually a humorous or sarcastic remark that is meant to throw off the batter's concentration and give the pitcher an advantage. The crossword solutions for this term are SIGN, which is a four-letter word. In baseball, the CATCHER will often signal to the pitcher what type of pitch to throw by using hand signals. These signals are referred to as signs.