As a writing instructor, I’ve been chronically frustrated by the fact that composition textbooks use words no one has ever defined.
Flow, for instance.
What is it?
What is a paragraph apart from a list of sentences separated from two other lists of sentences inside a longer text?
The answer is that a paragraph has a topic (topic?) and the sentences have flow.
But we already said we can’t define flow, so that’s no help.
Then there’s the universal margin-comment: awkward, awk for short.
What is an 18-year old college freshman who writes awkward sentences to make of the word awkward?
Not much, I fear.