Grade 1 den Get Printable Handwriting (Den) 1 syllables Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. 1 the cave or other lair of a wild animal 2 a hiding place 3 a unit of 8 to 10 cub scouts Example Sentence We like to play in the den. Synonyms cave; lair; cavern; hideout Antonyms out in the open Hear It! Say It! Write It! den Switch to cursive Start Share with your friends: