trade vs buy

trade and buy both are nouns.

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

trade (noun)	buy (noun)
the skilled practice of a practical occupation	an advantageous purchase
the business given to a commercial establishment by its customers
a particular instance of buying or selling
an equal exchange
the commercial exchange (buying and selling on domestic or international markets) of goods and services
people who perform a particular kind of skilled work
steady winds blowing from east to west above and below the equator

trade (verb)	buy (verb)
turn in as payment or part payment for a purchase	accept as true
engage in the trade of	obtain by purchase; acquire by means of a financial transaction
exchange or give (something) in exchange for	make illegal payments to in exchange for favors or influence
do business; offer for sale as for one's livelihood	acquire by trade or sacrifice or exchange
be traded at a certain price or under certain conditions	be worth or be capable of buying