KN

The two-character ISO 3166 country code for SAINT KITTS AND NEVIS.
Found on http://www.duke.edu/~charvey/Classes/wpg/bfglosk.htm

Kn

KN is an abbreviation for Kilo Newton
Found on http://www.probertencyclopaedia.com/N11.HTM

KN

[disambiguation] A selected picture should: ...
Found on http://en.wikipedia.org/wiki/KN_(disambiguation)

Kn

greave.
Found on http://s_van_dorst.tripod.com/Ancient_Warfare/Greece/greek_glossary.html
No exact match found