window pane vs loony toons

window pane and loony toons both are nouns.

Word	Noun	Adjective	Verb	Adverb
window pane	Yes	No	No	No
loony toons	Yes	No	No	No

As nouns, window pane and loony toons are synonyms defined as:

Other synonyms of window pane include acid, back breaker, battery-acid, dose, dot, Elvis, Lucy in the sky with diamonds, pane, superman, Zen.

window pane (noun)	loony toons (noun)
street name for lysergic acid diethylamide	street name for lysergic acid diethylamide