nightcrawler Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. a type of earthworm that comes out at night Example Sentence I saw a nightcrawler in the garden. Synonyms earthworm; night crawler; dew worm Antonyms dayworm; diurnal worm Hear It! Say It! Write It! nightcrawler Switch to cursive Start Share with your friends: