1. GNAA - Noun
2. GNAA - Proper noun
Initialism of Global Network of Arab Activists.
Initialism of Great North Air Ambulance.
Initialism of Gridless Narrow-Angle Astrometry.
Initialism of Guilford Native American Association.
(Internet) Initialism of Gay Nigger Association of America.
GNAA (uncountable)
Initialism of gridless narrow-angle astrometry.