To unite means to join together or come together to form a single group or whole. When people unite, they combine their efforts or stop being separate. A country might unite its citizens during a crisis, setting aside disagreements to work toward a common goal. Sports teams unite players from different backgrounds into one squad working together.

The word suggests active cooperation and shared purpose. When a class unites to help a struggling classmate, they're actively choosing cooperation over division. When different clubs unite for a school fundraiser, they're pooling their energy and ideas rather than competing.

Unite can describe physical joining too. Engineers might unite two pieces of metal by welding them together. When puzzle pieces unite, they fit together to create the complete picture.

The opposite of unite is divide or separate. While division creates fragments, uniting creates strength through combination. Think of how individual musicians unite to form an orchestra, or how the fifty states united to form one nation. The phrase united we stand, divided we fall captures how uniting can make groups stronger than they would be apart.