The abbreviation "NG" can have different meanings depending on the context:
- No Good : In everyday language, NG is often used to express that something is not good. Gamers, friends, and NFL referees use this acronym to let others know that something is not good. It is commonly used to express opinions about films, food, songs, TV shows, or other critiquable items
- Nanogram : In the context of medicine, NG stands for "nanogram." It is a unit of mass, often used in the medical field to measure small amounts of substances
- No Grade : In academic settings, NG is used as a grade notation for "no grade." It is entered on a student's transcript when they have not yet received a letter grade or when the grade has been removed under certain conditions
- Nasogastric : In medical terminology, NG can also refer to a nasogastric tube, which is a tube inserted into the stomach via the nose to remove stomach content
- National Guard or New Guinea : In some cases, NG can also stand for "National Guard" or "New Guinea"
