Google definition
the first 4 definitions all explicitly say that it is either a suvere reduction or elimiation of tarrifs and artifical barriers. free trade is what Corperations like nike use to get there products into the country from there factories in poor LEDCs.
i will again restate it, the tariffs that the US put on canadian soft wood lumber was illegal under a Free trade system.
what you are discribeing is regular trade.