bˈætʃ ɹᵻnˈeɪmɪŋ kæn ˈɔːlsoʊ biː ɹᵻfˈɜːd tʊ æz mˈæs fˈaɪl ɹᵻnˈeɪmɪŋ, ɹᵻnˈeɪm ɑːn mˈæs ænd bˈʌlk ɹᵻnˈeɪmɪŋ.
Batch renaming can also be referred to as 'mass file renaming', rename 'en masse' and 'bulk renaming'.