資料來源 : pyDict

讀者,讀者人數,讀者階層

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Readership \Read"er*ship\, n.
   The office of reader. --Lyell.

資料來源 : WordNet®

readership
     n : the audience reached by written communications (books or
         magazines or newspapers etc.)