読者 is read as どくしゃ (dokusha) and means reader.
どくしゃ
dokusha
どくしゃすう
reader numbers
どくしゃらん
reader's column
どくしゃのこえ
reader feedback (to author, magazines, etc.)
どくしゃそう
readership
さどくしゃ
referee (of a manuscript)
こうどくしゃ
subscriber
あいどくしゃ
よみかた
way of reading (out loud)
よみうり
Yomiuri (newspaper, etc. group)
よみもの
reading matter
よみて
composer (of a poem)
よみきる
to finish reading