What does "gui" mean?

Initialism of graphical user interface.

How do you pronounce "gui"?

Pronounced //ˈdʒiːjuːaɪ//.

Common synonyms include: desktops, graphical, graphical interface, graphical ui, graphical user interface, visual.

/ˈdʒiːjuːaɪ/ noun

noun ·Rare ·Advanced level

Noun

1
Initialism of graphical user interface. abbreviation, alt-of, initialism
2
a user interface based on graphics (icons and pictures and menus) instead of text; uses a mouse as well as a keyboard as an input device wordnet

"One of the most important parts of game design is the graphical user interface, or GUI for short."