The term sustainable city refers to a city that prioritizes eco-friendliness, minimizing carbon emissions, and providing a healthy and safe environment for all inhabitants. There are several synonyms for the term sustainable city, including green city, eco-city, resilient city, smart city, livable city, and regenerative city. Each synonym highlights different aspects of sustainability, with green city focusing on green spaces and renewable energy, resilient city emphasizing risk management and disaster preparedness, smart city highlighting the use of technology to optimize city functions, livable city prioritizing quality of life for residents, and regenerative city emphasizing circular and closed-loop systems. Regardless of the synonym, the goal remains the same, to create a city that is socially, economically, and environmentally sustainable for present and future generations.