Plainly
look up a word, understand it — no rabbit hole
canon
nounKAN-un
meaning in plain English
An accepted rule, or a list of works everyone agrees matter.
Think shelf of classics — the canon is the list of books that made the cut.
for example
The novel became part of the canon, the list of books every student reads.
If something is in the canon, experts agree it matters. Why does every class read that novel? Because it is in the canon — the trusted list of must-reads.