Do "officially" and "canonically" mean the same thing?

Question

Hi. Do "officially" and "canonically" mean the same thing? "Canonically" in the context I am using the term refers to fiction.

I know if something is canon it's an official part of some fictional universe.

Please help. Thank you.

Answer 1

No they don't 

Answer 2

Close, but not quite.  Canons are church laws, so "canonical" means legal in a church sense.  Something can be official without being canonical.

Answer 3

Sort of, but not exactly. What is and isn't "canon" in a fictional context is really complicated actually.