graphical user interface vs panel

graphical user interface and panel both are nouns.

Word	Noun	Adjective	Verb	Adverb
graphical user interface	Yes	No	No	No
panel	Yes	No	Yes	No

graphical user interface (noun)	panel (noun)
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	sheet that forms a distinct (usually flat and rectangular) section or component of something
	electrical device consisting of a flat insulated surface that contains switches and dials and meters for controlling other electrical devices
	a soft pad placed under a saddle
	(computer science) a small temporary window in a graphical user interface that appears in order to request information from the user; after the information has been provided the user dismisses the box with `okay' or `cancel'
	a piece of cloth that is generally triangular or tapering; used in making garments or umbrellas or sails
	a group of people gathered for a special purpose as to plan or discuss an issue or judge a contest etc
	a committee appointed to judge a competition
	(law) a group of people summoned for jury service (from whom a jury will be chosen)

graphical user interface (verb)	panel (verb)
	select from a list
	decorate with panels