GUIs is GUI's Plural Form

GUI

US [ˌdʒi ju ˈaɪ]
UK [ˌdʒiː juː ˈaɪ]
Plural Form:GUIs  
abbr.
1.
【计】(=graphical user interface)图形用户界面

Sample Sentence

Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard