natural barrier Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. a physical feature that prevents movement. Example Sentence A mountain is a natural barrier making travel to the other side difficult. More Example Sentences Rivers can act as a natural barrier. Synonyms obstacle; hindrance; blockade Antonyms path; route; opening Hear It! Say It! Write It! natural barrier Switch to cursive Start Share with your friends:
