S Definition & Meaning For other uses, see. Fort Worth is the in the of and the. It is the ofcovering nearly 350 square miles 910 km 2 into four s&p500 counties:,and. According to a 2022 United States census estimate, Fort Worth's population was 958,692. Fort Worth is the second-largest city in the metropolitan area, s&p500 is the in the United States. Fort Worth... S .Words that start with s .S..