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Interesting,. Nomenclature is a wretched problem. People use the same term to refer differing things. I spent over 40 years as an archaeologist, working as a pottery specialist. I have handled thousands of vessels and literally millions of potsherds (pieces of broken vessels). I did perhaps 10,000 measured drawings. Even within a given project, where we were dealing with a specific corpus of pottery, there was no real agreement as to how to define a "bowl" vs "pot" vs "jar" vs "plate" etc. Some forms were obvious, but others --- I made my definitions as explicit as I could, so colleagues would know what I meant by the terms I used.definitions will vary according to maker.
below are the definitions used in the florida state fair woodturning competition.
these guidelines group similar objects for judging.
If you need a definition, Al's post showing Florida's state fair definitions is a good one to give a mental concept. Classifications are necessary in this case, in order to compete for awards.
that is any easy oneOK which category would a 3" high x 5" diameter lidded container fall into?
By your definitions where would a 10” round globe with 3/8” wall and 1-1/4” hole be categorized? It would not be a HF unless your fingers are huge.A hollow form is an enclosed rounded very thin piece with a hole that you cannot get your finger in. And a vessel is something else that will hold or capture anything else.
It’s notJust out of curiosity, why is it important (other than satisfying the criteria for an exposition or competition). For me, thinking about it interferes with the challenge and fun of turning. I just turn whatever I feel like.
The big question is whoever came up with the screwy idea of calling a round lidded container a box