affair(it is an affair of a few days – это вопрос нескольких дней • it is my affair – это мое дело • mind your own affairs – не суйтесь не в своё дело)
nevermind(concern; business; affair; responsibility (usually used in negative constructions) eg "be no nevermind of someone's" • It's no nevermind of yourscollinsdictionary.com)
ball game(в составе выражения "совсем другое дело" • It's one thing to babysit your friends' kids from time to time, but having your own children is a whole new ball game.baletnica)
ploy; shebang; lay; proposition; the piece; brief; errand(часто во мн.ч. – errands; тж. в ед. ч. • It was to Esmond Haddock that the constable directed his opening remark. ‘I've come on an unpleasant errand, sir,' he said, and the chill in the Wooster feet became accentuated. (P.G. Wodehouse; за пример спасибо ART Vancouver)4uzhoj); todo
ongoings(a Scots word for goings-on. Not otherwise could all the ongoings of this world be continued. Recreations of Christopher North, Volume I (of 2) VLZ_58)
employment; business; matters(matters become more complicated – дело (ситуация, положение) усложняетсяStas-Soleil); work(in the sense of "matter' • The injection is the work of a split second to anyone experienced in intramuscular injections.Stanislav Silinsky); work; adventure(детективное расследование • The Adventure of the Final Problem – "Последнее дело Холмса" • The Adventure of the Tall Man – "Дело о долговязом"sea holly)
errands(“Roger's late.” “Oh, he's running a few errands after work.” – Он поехал по делам после работы.ART Vancouver); work(denghu); goings-on(Shortly after his arrival, Frank joined Ken and Debbie in the kitchen to discuss the bizarre goings-on further. They returned to the study a short time later, and to their shock, a new message was awaiting them on the computer. (mysteriousuniverse.org)ART Vancouver)
get(usu. with куда, to); disappear(to); go(with куда or некуда); hide; run away from(Я не знал вчера, куда деться от скуки. – I did not know yesterday where to run away from boredom. I did not know yesterday where to hide myself away from boredom. VLZ_58)
collinsdictionary.com)