What is the meaning of Nominative_absolute?

A grammatically independent element of a sentence conveying additional circumstances; present:

  1. in English; realized as a noun phrase and a participle or adjective
  2. in Ancient Greek, less frequent than the accusative absolute which is less frequent than the genitive absolute
  3. in Late Latin

in English; realized as a noun phrase and a participle or adjective

in Ancient Greek, less frequent than the accusative absolute which is less frequent than the genitive absolute

in Late Latin

Source: wiktionary.org