IAD
noun
IAD is a noun meaning “internal affairs department” (English Wiktionary, September 2026). It is spelled I-A-D, and it appears about once in every 5 million words in written English (wordfreq, 2021 data). The plural of IAD is IADs.
What does IAD mean?
noun
- 1
internal affairs department
- 2
intelligent assist device
- 3
Initialism of Internet addiction disorder.
- 4
Initialism of incontinence-associated dermatitis.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of IAD
- IADs plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is IAD?
IAD appears about once in every 5 million words in written English, the 64,400th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).