What does ng stand for?

Nanogram - One billionth of a gram

Niger - MARC country of publication code - Library of Congress (LCCP)

Ngoko - Linguistics (IEL)

Gill Aviation Ltd. (SAUS)

Green Hills Aviation - ICAO designator (AD)

Narrow Gage (NAKS)

Narrow Gauge

Nasogastric - Medicine

National Gallery - London

National Gathering - Jordan - A publication (BJA)

National Grange (EA)

National Grid - British Ordnance Survey maps

National Guard - or Guardsman

Natural Gas

Natural Gas Shutoff - NFPA pre-fire planning symbol (NFPA)

Natural, Grazed - Agriculture

Naval Gunfire (SAA)

Navy General - MCD files

NAZI Government (BJA)

Negative Glow (IDOE)

Negotiate - Telegraphy (PCTE)

Neopentyl Glycol - Organic chemistry

Nephridial Gland

New Game - Internet lingo

New Genus

New Gnostics Special Interest Group (EA)

New Granada

New Group

New Growth - Medicine (EDAA)

New Guinea

New Guy - Chat lingo

Newly Generated

Newsgroup (SAUS)

Next Generation (SAUS)

Niger - Federal Information Processing Standard (FIPS) country code (GEON)

Nigeria - ANSI two-letter standard code (CNC)

Nigeria - NCIC country-territory code (NCIC)

Nitrogen Gauge (MCD)

Nitroglycerin - Also, GTN, NTG - Explosive, vasodilator

Nitroguanidine - Organic chemistry

Noble Gases - Nuclear energy (NRCH)

Noble Grand

Noble Guard - Freemasonry (ROG)

Nodose Ganglion - Medicine (DB)

Nodular Goiter - Medicine (MELL)

No Go - i.e., an unacceptable arrangement

No Good - Similar to IC - Inspected and Condemned

No Growth - Medicine (EDAA)

No Gum - Philately

Non-Government (OTD)

Nongraduate

Non-Groupable - Medicine (EDAA)

Normal Graduate

Normoglycemia - Medicine (MELL)

Normotensive Group - Cardiology

Norwegian

Norwegium - Chemistry (ROG)

Nose Gear - Aviation (MCD)

Nose Guard (SAUS)

Not Given (ADA)

Not Good

Not Greater (SAUS)

Not Ground (SAUS)

Not Guilty

Nottingham - Postcode (ODBW)

No Window Glazing

Nuclear Galaxy (BARN)

Nut Grounds (SAUS)

Royal North Gloucestershire Militia - British military (DMA)