- “Greek Catholic” is simply a ritual descriptive term, such as “Latin Catholic” is used when speaking of those Catholics of the Latin Rite. It does not mean the particular Church is ethnically Greek, but belongs to the Greek/Byzantine liturgical tradition. The official term in Slavonic is “Hreko-Katolik” which is what Rome and the Kyivan bishops used to distinguish those of the Greek Rite when drafting the documents of the Union of Brest.
Most non-Muscovite parishes use vernacular Ukrainian, whether they be Ukrainian Greek Catholic (UGCC), Ukrainian Orthodox-Kyivan Patriarchate, or Ukrainian Autocephalous Orthodox.
- All Ukrainians use the Cyrillic alphabet. Ukrainian is the national language of Ukraine, although Russian may be spoken in some areas of Left-bank (Eastern) Ukraine, Romanian spoken locally near Moldova, Rusyn in Zakkarpatia, etc.
There are some Slavic peoples, such as the Czechs, Slovaks, Slovenians, Croats and Poles, who use a modified Latin alphabet.