interchange vs ransom

interchange and ransom both are nouns.

Word	Noun	Adjective	Verb	Adverb
interchange	Yes	No	Yes	No
ransom	Yes	No	Yes	No

As verbs, ransom is a hyponym of interchange; that is, ransom is a word with a more specific, narrower meaning than interchange:

Other hyponyms of interchange include sell, cash, cash in, redeem, redeem, fill in, stand in, sub, substitute, swap, switch, swop, trade, barter, trade, trade in.

interchange (noun)	ransom (noun)
the act of changing one thing for another thing	the act of freeing from captivity or punishment
mutual interaction; the activity of reciprocating or exchanging (especially information)	payment for the release of someone
reciprocal transfer of equivalent sums of money (especially the currencies of different countries)	money demanded for the return of a captured person
a junction of highways on different levels that permits traffic to move from one to another without crossing traffic streams

interchange (verb)	ransom (verb)
reverse (a direction, attitude, or course of action)	exchange or buy back for money; under threat
cause to change places
give to, and receive from, one another
put in the place of another; switch seemingly equivalent items