subscriber - Wiktionary, the free dictionary

From subscribe +‎ -er.

• (General American) IPA^(key): /səbˈskɹaɪbɚ/
• Rhymes: -aɪbə(ɹ)

subscriber (plural subscribers)

1. A person who subscribes to a publication or a service.

   Our magazine has over ten thousand subscribers.

2. (programming) A system or component that subscribes to something, such as an event, made available by a publisher.

   • 2013, Addy Osmani, Developing Backbone.js Applications, page 175:

     An event aggregator facilitates a fire-and-forget model of communication. The object triggering the event doesn't care if there are any subscribers.

subscriber

1. to subscribe