nouns
the form in which a text (especially a printed book) is published
is a type of (narrower)
all the copies of a work printed at one time
"they ran off an initial printing of 2000 copies"
all of the identical copies of something offered to the public at the same time
"the first edition appeared in 1920"; "it was too late for the morning edition"; "they issued a limited edition of Bach recordings"
is a type of (narrower)
any number of entities (members) considered as a unit
an issue of a newspaper
"he read it in yesterday's edition of the Times"
is a type of (narrower)
one of a series published periodically
"she found an old issue of the magazine in her dentist's waiting room"
something a little different from others of the same type
"an experimental version of the night fighter"; "a variant of the same word"; "an emery wheel is the modern variation of a grindstone"; "the boy is a younger edition of his father"