ngb ngapi • ngf · · · Info · Definitions · Characters · · ngb · · Text Latin · · Script 3 · · Length 1 · · Syllables Definitions · · · (noun) the agency that administers the Army National Guard and the Air National Guard; provides liaison between the Army and the Air Force and various National Guard units. Synonyms: National Guard Bureau, NGB. · · Noun Definition 1 Characters · · b latin small letter b U+0062 g latin small letter g U+0067 n latin small letter n U+006E