orangutans Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition plural noun. large tree-dwelling primates known for their intelligence and reddish-orange fur. Example Sentence We enjoyed watching the orangutans at the zoo. More Example Sentences Orangutans use tools to find food. Synonyms apes; primates; great apes Antonyms spider Hear It! Say It! Write It! orangutans Switch to cursive Start Share with your friends: