Grade 7 kingdom Get Printable Handwriting (king-dom) 2 syllables Rhymes Learn It! Spelling Test Definition noun. the highest level of classification of living things. Example Sentence Lions rule the animal kingdom. Synonyms dynasty; empire; territory Antonyms lowest level Rhymes Two Syllable Rhymes (1) kingdom Three Syllable Rhymes (1) subkingdom Share with your friends: