designated hitter Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. a player in baseball who bats in place of the pitcher. Example Sentence The coach decided to use John as the designated hitter for the game. Synonyms pinch hitter; substitute batter; replacement hitter Antonyms pitcher; fielder Hear It! Say It! Write It! designated hitter Switch to cursive Start Share with your friends: