subscriber
noun [ C ] uk/səbˈskraɪ.bər/ us/səbˈskraɪ.bɚ/
订购者，订阅人;用户;定期捐款者
someone who subscribes to a product, service, or organization
Cable television companies have launched major campaigns to increase their number of subscribers. 有线电视公司已开展大型促销活动以增加用户数。