def get_all_dict_words(dict_):
    """
    This function gets all the word entries of the dictionary.

    :param dict_: Dictionary words and their definitions.
    :type dict_: dict
    :return: All the word entries.
    :rtype: list
    """
    words = set([])

    for k, v in dict_.items():
        for lev, meaning_words in v.items():
            words = words.union(meaning_words)

    return list(words)