erupts Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. to throw out or off something from within often violently; to develop suddenly and violently Example Sentence The janiform mask erupts into 2 pairs of horns. Synonyms belch; disgorge; eject; expel; spew Antonyms botle up; contain; restrain Hear It! Say It! Write It! erupts Switch to cursive Start Share with your friends: