What does LNO stand for?

L&L Boats, Key West, FL - Manufacturer code for watercraft hull identification number (USCG)

Lango - Language code (ETLW)

Laona & Northern Railway Co. - AAR code

Leonora - Australia - Airport symbol (OAG)

Liaison Officer - Military

Limited Nuclear Option - Military (MCD)

Local Network Operations - Computer science (VLIE)