There are multiple synonyms for the term "city board" which refers to a governing body in charge of administering a city. One such synonym is "city council," which is an elected group of officials responsible for making and implementing policies and ordinances governing a city. Another synonym is "municipal board," which is a group of appointed individuals tasked with overseeing and managing a specific city department. A third synonym is "urban board," which is a similar governing body that is responsible for overseeing and managing city services and resources. Overall, all these synonyms refer to a group of people responsible for ensuring that a city operates seamlessly and efficiently.