As a pronoun un
is one (impersonal pronoun).
As an acronym nato is
.
un
English
Initialism
(Initialism)
(head)
United Nations
Related terms
* UNO
Anagrams
*
nato
Alternative forms
* Nato (Recommended by some style guides.)
Synonyms
*North Atlantic Terrorist Organization (invective)
Anagrams
*