nan

Short definition from Wiktionary

Noun

1. 1
   Synonym of maid: a servant girl.
2. 2
   Synonym of nancy: an effeminate male homosexual.
3. 3
   Synonym of nursemaid.
4. 4
   Synonym of grandmother.
5. 5
   Alternative spelling of naan.
6. 6
   radiotelephony clear-code word for the letter N.
7. 7
   NMDA antagonist neurotoxicity.
8. 8
   Alternative form of NaN (not a number)
9. 9
   Acronym of not a number, applied to numeric values that represent an undefined or unrepresentable value, such as zero divided by itself.

Proper noun

1. 1
   A diminutive of the female given name Ann and Nancy.
2. 2
   A province of Thailand.
3. 3
   The capital of Nan Province, Thailand.
4. 4
   Initialism of National Assembly of Nigeria.