res: negotium (business): causa (lawsuit; then, any business one may have undertaken): cura (the care of any business, the administration, the office): sollicitudo (solicitude): anxietas (anxiety): an important concern, res major: a concern of little importance, res minuta or parva: this affair caused me some concern, sollicitus eram hac de re: nothing gave me more concern than etc., nihil me magis sollicitabat, quam etc.