| Subject | English | Russian |
| gen. | an ecumenical council | вселенский собор |
| rel., christ. | Commemoration of the First Ecumenical Council | Память Первого Вселенского Собора (browser) |
| rel., christ. | Commemoration of the Holy Fathers of Seven Ecumenical Councils | Память святых отцов семи Вселенских Соборов (browser) |
| rel., christ. | Ecumenical Catholic Church | Экуменическая католическая церковь |
| relig. | ecumenical council | вселенский собор |
| gen. | Ecumenical Council | Экуменический совет |
| foreig.aff. | Ecumenical Council of Churches in Hungary | Экуменический совет церквей Венгрии |
| dipl. | Ecumenical Council of Orthodox Churches | Вселенский собор православных церквей |
| cinema | ecumenical jury | экуменическое жюри (grafleonov) |
| rel., christ. | Ecumenical Movement | Движение экуменическое |
| relig. | ecumenical movement | экуменическое движение |
| relig. | ecumenical movement | экуменизм |
| relig. | Ecumenical Patriarch | Вселенский патриарх (Патриарх Константинопольский) |
| rel., christ. | Ecumenical Patriarchate | Вселенский Патриархат (browser) |
| relig. | Ecumenical Patriarchate of Constantinople | Вселенский патриархат константинопольский (Honorary primacy of the Eastern Orthodox autocephalous churches; it is also known as the "ecumenical patriarchate", or "Roman" patriarchate) |
| rel., christ. | ecumenical relations | экуменические отношения (Wall Street Journal Alex_Odeychuk) |
| relig. | Ecumenical Youth Council in Europe | Экуменический Совет Молодёжи в Европе |
| relig. | Eighth Ecumenical Council | Восьмой Вселенский собор (869-870, a council of the Christian church, meeting in Constantinople. The Roman church eventually recognized it as ecumenical, but the Eastern church for the most part denied its ecumenicity and continues to recognize only the first seven ecumenical councils) |
| relig. | Fifth Ecumenical Council | Пятый Вселенский собор (553, the council of the Christian church, meeting under the presidency of Eutychius, patriarch of Constantinople) |
| rel., christ. | Fifth-Sixth Ecumenical Council | Пято-шестой Вселенский собор (igisheva) |
| rel., christ. | First Ecumenical Council | Первый Вселенский собор (igisheva) |
| rel., christ. | Fourth Ecumenical Council | Четвёртый Вселенский собор (igisheva) |
| gen. | International Ecumenical Fellowship | Международное экуменическое братство |
| foreig.aff. | Nordic Ecumenical Council | Скандинавский экуменический совет |
| rel., christ. | Quinisext Ecumenical Council | Пято-шестой Вселенский собор (igisheva) |
| relig. | Second Ecumenical Council | Второй Вселенский собор (381, the council of the Christian church summoned by the emperor Theodosius I and meeting in Constantinople. Doctrinally, it promulgated what became known to the church as the Nicene Creed) |
| rel., christ. | Seventh Ecumenical Council | Седьмой Вселенский собор (igisheva) |
| relig. | Sixth Ecumenical Council | Шестой Вселенский собор (680, the council of the Christian church summoned by the emperor Constantine IV and meeting at Constantinople) |
| rel., christ. | Sunday of the Fathers of the First Ecumenical Council | неделя отец первого вселенского собора |
| rel., christ. | Sunday of the Fathers of the First Ecumenical Council | воскресенье отец первого вселенского собора |
| rel., christ. | Sunday of the Holy Fathers of the First Six Ecumenical Councils | воскресенье святых отец первых шести вселенских соборов |
| rel., christ. | Sunday of the Holy Fathers of the First Six Ecumenical Councils | неделя святых отец первых шести вселенских соборов |
| rel., christ. | Sunday of the Holy Fathers of the First Six Ecumenical Councils | воскресенье святых отцов первых шести вселенских соборов (Борис Горелик) |
| rel., christ. | Sunday of the Seventh Ecumenical Council | неделя о седьмом вселенском соборе |
| rel., christ. | Sunday of the Seventh Ecumenical Council | воскресенье седьмого вселенского собора |
| rel., christ. | Third Ecumenical Council | III Вселенский Собор (browser) |
| rel., christ. | Third Ecumenical Council | Третий Вселенский Собор (browser) |
