tree frog Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. any of various arboreal frogs especially of the family Hylidae usually having adhesive disks at the tip of each toe. Example Sentence We watched the tree frog climb the tree. Synonyms tree toad; tree-toad; tree-frog Antonyms tadpole Hear It! Say It! Write It! tree frog Switch to cursive Start Share with your friends: