À L'Unisson, acceptation, accepter, accointances, accord, acquiescement, adhésion, agrément, alliance, amitié, approbation, arrangement, assentiment, autorisation, charte, coalition, cohésion, collusion, complaisance, complicité, concert, conciliation, concorde, connivence, consentement, consentir, convention, coordination, de concert, ensemble, entendu, entente, harmonie, oui, pacte, permission, traite, transaction, unanimité, union, unisson