Yeah, the nominative is typically the morphological realization of the 'subject' - it's a bit more complicated than this, and it could be argued this is a very Indo-European-centric view. While English has lost all of its inflections, we still see case in personal pronouns, although they're only really subject/object and the distinction between the various forms of 'object' aren't made at ALL. > "I like her, and she likes me." Where "I" and "me" as well as "she" and "her" are both different, but refer to the same thing being used in different ways in a sentence. We can compare this to, say, Icelandic, where the difference is made more clear with the vast majority of nouns: > "slensk**__a__** er ekki erfitt a lra, en mig langar ekki a lra slensk**__u__**." > (Icelandic is not difficult to learn, but I don't want to learn Icelandic) Here, in English, there is no difference in form between "Icelandic" as the subject (nominative) vs Icelandic as an object (accusative/dative/etc). Where we see the word ending in [-a], which is the common nominative inflection for languages in the singular indefinite vs [-u], which is most common inflection accusative/dative inflection for languages in the singular indefinite.
thank you Will