No matter where one goes in North America today, even if one travels to Europe, the very term or word "Church" is about 95% of the time thought to be a building, a place to worship.
This false andd erroneous understanding was promulgated by erring the Roman Catholic, even though loose segments of the Orthodox Churches in times past, are also guilty of the same error. Protestants took the same usage, term and erroneous definition in an unconscious fashon as to now be rooted in a mind-set so as to beocme the vocabulary and definition described in modern times, especially in dictionaries.
The same can be said about the use of the word "Catholic" for it is not exclusively "Roman" as in the Roman Catholic Church for she came out of that which is truly "Orthodox Catholic".
The word "Church" actually comes from the word "Ecclesia" which literally means "Faith of the peple" - not a building or place of worship.
The actual word used for a place of worship is "TEMPLE". Few today use "Temple" except for some of the Eastern Orthodox Catholics, some cults and off-shoots of Protestantism.
In Orthodox Catholic Christianity, the word "Temple" is used by, primarily, the Russian Orthodox Patriarchate of Moscow with a general description as follows:
The temple is an edifice consecrated to God in which the faithful gather to offer common prayer to the Lord (Luke 19:46), and to receive the Grace of God through Holy Communion and other Holy Mysteries (I Cor. 11:22).
Each temple is given its own name: one may be called "Nativity of Christ," another "Holy Dormition," another "All Saints," or even "Saints Peter and Paul," etc. and so on. Temples are so named because they are eerected and consecrated to God in honor of one or another event in the history of the Faith, or in honor of a Saint of God chosen to be a special intercessor (Patron) before the Lord on behalf of the community of faithful who form the "Church," the "ecclesia".