el vs elevated railway

el and elevated railway both are nouns.

Word	Noun	Adjective	Verb	Adverb
el	Yes	No	No	No
elevated railway	Yes	No	No	No

As nouns, el and elevated railway are synonyms defined as:

el and elevated railway: a railway that is powered by electricity and that runs on a track that is raised above the street level

Other synonyms of el include elevated, elevated railroad, overhead railway.

el (noun)	elevated railway (noun)
a railway that is powered by electricity and that runs on a track that is raised above the street level	a railway that is powered by electricity and that runs on a track that is raised above the street level