A kangaroo word is a word that contains within itself a smaller word that has the same meaning as the larger one. The smaller word is known as a joey word. Kangaroo words and joey words are a fun and interesting way to teach vocabulary, particularly in younger learners. There are several synonyms for the term "kangaroo word," including "pouch word," "carrying word," and "parent word." Each of these phrases alludes to the unique way that kangaroos carry their young in a pouch, just as a kangaroo word carries a joey word within itself. Other potential synonyms for "kangaroo word" include "embedded word," "hidden word," and "word puzzle." All of these phrases describe the way that a joey word is hidden within a larger word, requiring careful observation and critical thinking to uncover.