word_dict = {'show': ['display', 'exhibit', 'convey', 'communicate', 'manifest', 'disclose'],
             'slow': ['unhurried', 'gradual', 'leisurely', 'late', 'behind', 'tedious', 'slack'],
             'dangerous': ['perilous', 'hazardous', 'uncertain']}

def main():
    edited_synonyms = remove_word(word_dict)
    print(edited_synonyms) #should print out an edited dictionary

def remove_word(word_dict):
    dictionary = {}

    synonyms_list = word_dict.values()
    new_list = []
    for i in synonyms_list:
        new_list.append(i)

    for word in new_list:
        letter_length = len(word)
        if letter_length <= 7:
            new_list.pop(new_list.index(word))

    return dictionary