Reciprocal trading
Definition: two-sided trading, trading one thing and receiving another trade in return
Concept: mutual adjective trading and or exchange
Synonyms: accepted, coincident, alternate, changeable, companion, complementary, convertible, coordinate, correlative, corresponding, dependent, double, duplicate, equivalent, exchangeable, fellow, give-and-take, interchangeable, interdependent, matching, mutual, reciprocative, reciprocatory,

Exchange
Definition: giving one thing and receiving another
Concept: exchange trade don't hold or keep things
Synonyms: barter, castling, change, commerce, commutation, conversion, correspondence, deal, dealing, interchange, interdependence, interrelation, network, rearrangement, reciprocation, reciprocity, replacement, revision, shift, shuffle, shuffling, substitution, supplanting, supplantment, swap, switch, traffic, transaction, transfer, transposing, transposition, truck

ExChange
Definition: out, forth upward Change
Concept: give - get, set - get
Synonyms: alternate, bandy, bargain, barter, cash in, castle, change, change hands, commute, contact with, convert into, correspond, deal in, displace, flip-flop, hook up, horse trade, interchange, invert, link up, market, network, pass to, pay back, rearrange, reciprocate, replace, reverse, revise, seesaw, shift, shuffle, shuttle, substitute, swap, swap horses, switch, traffic, transact, transfer, transpose, truck

Change
Definition: differ substitute
Concept: substitution of one thing for another - cambire, barter
Synonyms: alternate, barter, convert, displace, exchange, interchange, invert, remove, replace, reverse, shift, supplant, swap, switch around, trade, transmit, transpose

Swap - Barter Trade
Definition: exchange or barter
Concept: exchange
Synonyms: exchange or barter a thing suitable for swapping. bandy, bargain, barter, change, interchange, substitute, switch, swop, trade, traffic, truck, stock

Swap meet
Definition: trade or exchange items
Concept: swap exchange barter
Synonyms: enthusiasts or collectors trade or exchange items - bandy, bargain, barter, change, interchange, substitute, switch, swop, trade, traffic, stock

Interchange
Definition: switch
Concept: swap exchange
Synonyms: alternate, bandy, barter, commute, connect, contact, convert, exchange, interact, interface, mesh, network, reciprocate, relate, reverse, substitute, swap, trade, transpose

Barter - Trade
Definition: trade
Concept: exchange
Synonyms: bargain, exchange, haggle, swap, trade, traffic, truck

Bargain
Definition: negotiation
Concept: arrangement
Synonyms: agree, arrange, barter, buy, compromise, confer, contract, covenant, deal, dicker, do business, haggle, palter, promise, sell, stipulate, trade, traffic, transact

Negotiation
Definition: talk discussion about regular trade, business, action
Concept: trading, dealing, bargaining
Synonyms: agreement, arbitration, colloquy, compromise, conference, consultation, debate, diplomacy, discussion, intervention, mediation, meeting, transaction

Trade - Exchange
Definition: exchange
Concept: buying and selling
Synonyms: buying and selling, transaction, swap, exchange, barter, business, clientele, commerce, contract, custom, customers, deal, dealing, enterprise, exchange, industry, interchange, market, merchantry, patronage, public, sales, swap, traffic, transaction, stock, matter, goods

Transaction
Definition: undertaking
Concept: business action
Synonyms: act, action, activity, affair, agreement, bargain, bond, business, buying, compact, contract, convention, coup, covenant, deal, dealing, deed, disposal, doings, enterprise, event, execution, goings-on, hanky-panky, hap, happening, intercourse, irons, matter, negotiation, occurrence, ongoing, pact, performance, play, proceeding, purchase, purchasing, sale, selling, step

Action
Definition: deed
Concept: commercial business done for profit
Synonyms: accomplishment, achievement, act, blow, commission, dealings, doing, effort, enterprise, execution, exercise, exertion, exploit, feat, handiwork, maneuver, move, operation, performance, procedure, step, stroke, thrust, transaction, undertaking