Batchmate is a term used to refer to someone who was in the same class or batch as you. There are a few alternative words that can be used to express the same meaning. Coeval is a word that is often used to describe someone who is of the same age or generation as another. This can also be applied to someone who was in the same batch as you. Classmate is another word that is commonly used to refer to someone who was in the same class as you. Peer, colleague, and teammate can also be used to describe someone who was part of the same group or team as you.