An alternative term to subscriber could be either: Endorser, client or contributor, depending on the meaning of subscriber that you are referring to. The most probable interpretation that you could mean is a subscriber in terms of a Youtube follower, or a subscriber to a magazine, the first being an admirer or endorser, whilst the second would be a customer, given that they have to pay to receive the magazine company's services. However, the third meaning, referring to somebody who contributes money to something, would present other terms that also meant subscriber like donor or giver. Without specifying exactly which meaning you are referring to, a correct answer can't be given.
However, you can easily find the meaning that you are looking for by either picking up a dictionary and searching for the word "subscriber", then heading over to the internet to enter "subscriber" on a website that offers similar words for those which you enter. This way you can find the precise meaning that you are looking for.
Subscribers are generally helpful people, who wish to give some of their own contribution to something that others have done, which they themselves may admire. For example, somebody may have a Youtube account with videos that the person viewing finds amusing or entertaining, therefore, they would subscribe to show their support and to increase the popularity of the video maker. Other examples could include somebody doing an admirable act of charity which other people could subscribe to by offering money as a donation to help the cause. Finally, as aforementioned, you can subscribe to your favorite magazine by giving the magazine publishing company a certain amount of money per month or annually to receive your favorite magazines every month, straight to your door.
However, you can easily find the meaning that you are looking for by either picking up a dictionary and searching for the word "subscriber", then heading over to the internet to enter "subscriber" on a website that offers similar words for those which you enter. This way you can find the precise meaning that you are looking for.
Subscribers are generally helpful people, who wish to give some of their own contribution to something that others have done, which they themselves may admire. For example, somebody may have a Youtube account with videos that the person viewing finds amusing or entertaining, therefore, they would subscribe to show their support and to increase the popularity of the video maker. Other examples could include somebody doing an admirable act of charity which other people could subscribe to by offering money as a donation to help the cause. Finally, as aforementioned, you can subscribe to your favorite magazine by giving the magazine publishing company a certain amount of money per month or annually to receive your favorite magazines every month, straight to your door.