| Acronym | Definition |
|---|
| NUD➣Non-Ulcer Dyspepsia |
| NUD➣National Unfriend Day (fictional holiday) |
| NUD➣Non-numerical Unstructured Data |
| NUD➣National Union of the Deaf (UK) |
| NUD➣Northshore Utility District (Kenmore, WA) |
| NUD➣Non-Urban Dictate (marketing) |
| NUD➣National Underwear Day (Freshpair.com) |
| NUD➣Non-University Differential |
| NUD➣Non Update |
| NUD➣New, Unique, & Difficult |
| NUD➣Nor-Cal Underground Design |