What does Gui stand for?

Guido de Cumis - Flourished, 13th century - Authority cited in pre-1607 legal work (DSA)

Guido de Suzaria - Deceased, 1293 - Authority cited in pre-1607 legal work (DSA)

Guillelmus de Accursio - Deceased, 1314 - Authority cited in pre-1607 legal work (DSA)

Guillelmus de Tocco - Authority cited in pre-1607 legal work (DSA)

Guinea (MILB)

Bolivian Eastern Guarani - Language code (ETLW)

Gay Union International - Paris, France (EAIO)

Genitourinary Infection - Medicine (PDAA)

Golfing Union of Ireland (EAIO)

Graphical User Interface - Computer science

Graphics-based User Interface (SAUS)

Graphic User Interface (SAUS)

Guiana (ROG)

Guiria - Venezuela - Airport symbol (OAG)

Guisasola Brothers - NCIC firearms make code (NCIC)

Guitar - Music

Gulf Coast Marine & Industrial Supply Inc., New Iberia, LA - Manufacturer code for watercraft hull identification number (USCG)

Guitar (GROV)