a company or product that is similar to others 同行企业；同类产品◆The grocery chain has suffered as bigger peers have cut their prices. 这家食杂连锁店因规模更大的店家降价而受损。◆We are outperforming peer companies. 我们的业绩超过了同行公司。
a person who is similar to you in age, social status, etc. 同等的人；同辈◆She enjoys the respect of her peers. 她受到同辈的尊重。◆Peer pressure is strong among young people (= they want to be like other people of the same age). 同辈压力在年轻人当中十分强烈。