Full Idea
Despite a widely misinterpreted passage in the Republic, Plato does not think that there is a Form for every general term; Forms are not what came to be called universals.
Gist of Idea
Forms are not universals, as they don't cover every general term
Source
report of Plato (The Republic [c.371 BCE]) by Julia Annas - Ancient Philosophy: very short introduction Ch.5
Book Reference
Annas,Julia: 'Ancient Philosophy: a very short introduction' [OUP 2000], p.82
A Reaction
Hm. This is a bit of a blow to someone who has catalogued Platonic Forms under 'Universals'. See also Idea 12042, for what Annas thinks Plato may really have had in mind.
Related Idea
Idea 12042 Plato's Forms were seen as part of physics, rather than of metaphysics [Plato, by Annas]