| Subject | English | Russian |
| econ. | windfall gain | значительный разовый доход (This high demand means that anyone who owns a property that is not very dense (say, a two-story, semidetached house) could in theory make a large, even life-changing windfall gain by selling it to someone to develop into more dense housing (say, a four-story multitenant unit). A.Rezvov) |
| account. | windfall gain | непредвиденная прибыль |
| busin. | windfall gain | непредвиденный доход (Alexander Matytsin) |
| gen. | windfall gain from price cuts | неожиданная экономия от снижения цен (A.Rezvov) |
| econ. | windfall gains | непредвиденные доходы |
| econ. | windfall oil gains | неожиданно высокие доходы от нефти (Alexander Demidov) |