Rd. Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. an abbreviation for road. Example Sentence Spell the abbreviation for road. Rd. More Example Sentences The sign pointed to Rd. 5. Synonyms street; avenue; path Antonyms wilderness; barrier; forest Hear It! Say It! Write It! Rd. Switch to cursive Start Share with your friends: