Civil engineer is a term used to describe professionals who design, build and maintain physical and natural environments. There are several synonyms for a civil engineer, including construction engineer, infrastructure engineer, and urban planner. A construction engineer is a specialist in construction and project management who supervises and coordinates activities from conceptualization to completion. An infrastructure engineer is a professional involved in the development, design, and maintenance of public and private infrastructure systems, including roads, bridges, tunnels, and airports. On the other hand, an urban planner is a professional who plans and manages urban environments, including towns and cities, by creating land use plans and zoning laws that govern them.