Examples from literature

• She wrote a song against cyberbullying, and she sang it with other classmates in an educational program for her school. 
• The bully had a lot of power over his classmates. 
• His classmates began to call him "old know-it-all." 
• Julia and one of Peter's classmates were just behind us. 
• Miriam and her three particular friends were carefully avoided by their classmates. 
• My friend and classmate, George H. Thomas, was there, in command of a brigade in the leading division. 
• The two were intimate at that time,—they had been classmates—and saw a great deal of each other.