root beer Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. a carbonated drink made of or flavored with extracts from the roots and bark of certain plants Example Sentence I like root beer. Spelled as two words. Synonyms carbonated beverage; soda; pop Antonyms water Hear It! Say It! Write It! root beer Switch to cursive Start Share with your friends: