Can I say "I have encrypted something" if I hash something? As I understand it, a hashing algorithm is some kind of encryption, just a specific kind of it. So is it wrong to say "I encrypted this value." if I "only" hash it?

I understand that it gives the wrong impression, but I think it is not absolutely wrong, or is it?
Encryption algorithms and hash algorithms both belong to the realm of cryptography but are two different things: Encryption doesn't contain hash functions.

As stated on Wikipedia:


  In cryptography, encryption is the process of encoding a message or information in such a way that only authorized parties can access it and those who are not authorized cannot.


An encryption algorithm turns some data into a ciphertext which can later be decrypted again to its original content by using the encryption key.

If you generate a hash of some data it can't be "reversed" back into its original content, because a hash function is (theoretically) a one-way function with loss of data.