title: mongodb - why name of collections alway is plural?
body: <p>I use mongoose and schema in express js to create collection.
  I don's unserstand why name of collection alway is plural ?
  For example : i want to create "member" collection. After running, in my database, "members" collection is created. I re-checked many time to sure that name of collection which i code "member", not be "members".
  Did I miss anything ? 
  Thanks advances!</p>