n.d.

phrase2

1. •
   Abbreviation of no date.
2. •
   Initialism of no data (used to indicate where information was not available, especially in tables, rather than leaving a blank).

noun3

1. •
   Northern District, used in case citations to identify courts, particularly United States federal courts designated to cover the northern part of a multi-district state
2. •
   Initialism of North Dakota: a state of the United States.
3. •
   Doctor of Naturopathic Medicine, an academic degree and title in naturopathic medicine