'Subscriber' definitions:

Definition of 'subscriber'

From: WordNet
noun
Someone who expresses strong approval [syn: subscriber, endorser, indorser, ratifier]
noun
Someone who contracts to receive and pay for a service or a certain number of issues of a publication [syn: subscriber, reader]
noun
Someone who contributes (or promises to contribute) a sum of money [syn: subscriber, contributor]

Definition of 'Subscriber'

From: GCIDE
  • Subscriber \Sub*scrib"er\, n.
  • 1. One who subscribes; one who contributes to an undertaking by subscribing. [1913 Webster]
  • 2. One who enters his name for a paper, book, map, or the like. --Dryden. [1913 Webster]