windowpane vs window

windowpane and window both are nouns.

Word	Noun	Adjective	Verb	Adverb
windowpane	Yes	No	No	No
window	Yes	No	No	No

As nouns, windowpane and window are synonyms defined as:

windowpane (noun)	window (noun)
very thin translucent flounder of the Atlantic coast of North America	a framework of wood or metal that contains a glass windowpane and is built into a wall or roof to admit light or air
a pane of glass in a window	a transparent opening in a vehicle that allow vision out of the sides or back; usually is capable of being opened
	a transparent panel (as of an envelope) inserted in an otherwise opaque material
	(computer science) a rectangular part of a computer screen that contains a display different from the rest of the screen
	a pane of glass in a window
	an opening in a wall or screen that admits light and air and through which customers can be served
	an opening that resembles a window in appearance or function
	the time period that is considered best for starting or finishing something