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| epochal; epoch-making; epoch making; milestone (User); landmark (о событии – (c) Дубовой 'More); momentous (lexicographer); earthshaking; watershed (4uzhoj) | |||
| definitive (Баян) | |||
| monumental (e.g., a monumental decision – эпохальное решение Alex_Odeychuk) | |||
| seminal (Boris Gorelik) | |||
| эпохальный: 24 phrases in 13 subjects |
| Business | 1 |
| Chess | 1 |
| Diplomacy | 2 |
| General | 8 |
| Law | 1 |
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| Makarov | 2 |
| Mathematics | 1 |
| Oil and gas technology | 1 |
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| Scientific | 1 |