oak Get Printable Handwriting (oak) 1 syllables Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. a type of tree that is strong and sturdy. Example Sentence We have an oak tree in our yard. More Example Sentences Many animals live in an oak tree. Synonyms tree; hardwood; quercus Antonyms squirrel Hear It! Say It! Write It! oak Switch to cursive Start Share with your friends: