What it means

1. adjective inside or closer to the inside of the body
   “the inner ear”
2. adjective located inward
   “Beethoven's manuscript looks like a bloody record of a tremendous inner battle”
3. adjective innermost or essential
   “the inner logic of Cubism”
4. adjective exclusive to a center
   “inner regions of the organization”
5. adjective confined to an exclusive group
   “privy to inner knowledge”