black hole Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. a region in space where gravity is so strong that nothing can escape from it. Example Sentence Astronomers cannot directly observe a black hole. More Example Sentences A black hole pulls in everything nearby. Synonyms void; abyss; gravitational well Hear It! Say It! Write It! black hole Switch to cursive Start Share with your friends:
