abatement of differences accommodation adjustment agency alternation arrangement badinage balance ballast banter bargain barter bartering battledore and shuttlecock boomerang brokerage buying and selling chaff changeable colloquial discourse colloquy comeback communication communion commutable commutation commutative composition compromise concession consideration conversation converse conversing convertible cooperation cop-out counter counterbalance counterblast counterblow counterchange counterpoise counterstroke counterweight cross fire deal dealing defensibility desertion of principle discourse doing business drumhead justice dueness equal equalizing equipoise equitableness equity equivalent evasion of responsibility even evenhandedness exchange exchanged fooling fooling around giving way good-natured banter harmless teasing horse trading interchange interchangeable interchanged intercourse interlocution intermutation interplay jape jest jive jobbing joke josh justice justifiability justifiableness justification justness kidding kidding around lawfulness legality lex talionis makeweight measure for measure meetness merchandising mutual mutual admiration mutual concession mutual support mutual transfer mutuality nemesis offset permutable permutation persiflage pleasantry poetic justice properness propriety quid pro quo raillery rallying rapping reciprocal reciprocality reciprocating reciprocation reciprocative reciprocity recoil reply retailing retaliation retaliatory retort retributive justice return returnable ridicule right rightfulness rightness rude justice scales of justice setoff settlement something for something something of value sport standard summary justice surrender swapped swapping switched tit for tat trade traded trading trafficking transposal transposed transposition twit understanding verbal intercourse warrantability warrantedness what is right wheeling and dealing wholesaling yielding