New users may recall from an early stage in their learning that a line and a curve are not the same. If they were the same, we would not have both words in our vocabulary. A curve is by its nature NOT straight. In conversation and description of design concepts I feel most people find value in distinguishing between a line and a curve and yet Fusion 360 apparently defines all lines as curves. It could have been the other way around. A case could be made that both lines and curves are lines and whether they are straight or curved is left for further clarification with the addition of an adjective.
When developing both a product and the documentation for that product, I feel it would help to use descriptive nouns that are as close as possible to the historic use for those words. Some of that historic use of words goes back hundreds of years.
