exchange vs trade

exchange and trade both are nouns.

Word	Noun	Adjective	Verb	Adverb
exchange	Yes	No	Yes	No
trade	Yes	No	Yes	No

As nouns, trade is a hyponym of exchange; that is, trade is a word with a more specific, narrower meaning than exchange:

exchange: reciprocal transfer of equivalent sums of money (especially the currencies of different countries)
trade: an equal exchange

Other hyponyms of exchange include conversion, barter, swap, swop, foreign exchange.

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

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

exchange (noun)	trade (noun)
reciprocal transfer of equivalent sums of money (especially the currencies of different countries)	the skilled practice of a practical occupation
the act of putting one thing or person in the place of another:	the business given to a commercial establishment by its customers
the act of changing one thing for another thing	a particular instance of buying or selling
the act of giving something in return for something received	an equal exchange
(chess) the capture by both players (usually on consecutive moves) of pieces of equal value	the commercial exchange (buying and selling on domestic or international markets) of goods and services
(chess) gaining (or losing) a rook in return for a knight or bishop	people who perform a particular kind of skilled work
(sports) an unbroken sequence of several successive strokes	steady winds blowing from east to west above and below the equator
a workplace for buying and selling; open only to members
a workplace that serves as a telecommunications facility where lines from telephones can be connected together to permit communication
a mutual expression of views (especially an unpleasant one)
chemical process in which one atom or ion or group changes places with another

exchange (verb)	trade (verb)
exchange or replace with another, usually of the same kind or category	turn in as payment or part payment for a purchase
change over, change around, as to a new order or sequence	engage in the trade of
exchange a penalty for a less severe one	exchange or give (something) in exchange for
give to, and receive from, one another	do business; offer for sale as for one's livelihood
put in the place of another; switch seemingly equivalent items	be traded at a certain price or under certain conditions
hand over one and receive another, approximately equivalent