Nominative case
The nominative case is a grammatical case for a noun. Some writers on English use the term subjective case instead of nominative, in order to draw attention to the differences between the "standard" generic nominative and the way it is used in English.
The nominative marks, generally, the subject of a verb. Nominative cases are found in Latin and Old English, among other languages. English still retains some nominative pronouns, as opposed to the accusative case or oblique case: I (accusative me), we (accusative us), he (accusative him), she (accusative her) and they (accusative them). An archaic usage is the singular second-person pronoun thou (accusative thee). A special case is the word you: Originally ye was its nominative form and you the accusative, but over time you has come to be used for the nominative as well.
See Morphosyntactic alignment.