Encoding, encryption, and hashing: those are three different things only loosely connected. It never occurred to me that anyone in our tribe wouldn’t understand the difference among them but according to Eric Mann there is confusing about them.
Mann has a useful post that explains the differences. The TL;DR is that encoding has nothing to do with cryptography while (cryptographic) hashing is generally considered part of any cryptographic suite.
There’s nothing very deep about the differences among these notions but if you’re unsure about them, take a look at Mann’s post. Maybe knowing the differences will even help you in an employment interview as it did Mann.