maquiladora vs assembly plant

maquiladora and assembly plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
maquiladora	Yes	No	No	No
assembly plant	Yes	No	No	No

As nouns, assembly plant is a hypernym of maquiladora; that is, assembly plant is a word with a broader meaning than maquiladora:

maquiladora: an assembly plant in Mexico (near the United States border); parts are shipped into Mexico and the finished product is shipped back across the border
assembly plant: a factory where manufactured parts are assembled into a finished product

maquiladora (noun)	assembly plant (noun)
an assembly plant in Mexico (near the United States border); parts are shipped into Mexico and the finished product is shipped back across the border	a factory where manufactured parts are assembled into a finished product