IPA: /ˈriːdəʃɪp/
KK: /ˈriːdərʃɪp/
A group of people who read a particular publication or book.
The magazine has a large readership, attracting millions of subscribers each month.
Readership → It is formed from "read" (from Old English "rǣdan", meaning to interpret or to advise) and "-ship" (meaning the state or condition of). The word "readership" refers to the state or condition of being a reader or the collective group of readers.
Think of the act of 'interpreting' ('read') something and the condition of belonging to a group ('-ship'). This helps you remember that 'readership' refers to the group of people who read.