The term “saint” was reserved for those who lived a virtuous life, those renowned for their faith and service to the church, those who were martyred for the faith, and those worthy of heavenly favour.
There are two categories of saints in the Armenian Church: those who are “celebrated” and those who are “commemorated”. The former are celebrated by means of recollection during the Divine Liturgy and the latter by the daily reading of their biographies and/or martyrdom from the Haysmavoork (The Book of Martyrologies and Lives of the Saints). There are also saints who remain unknown for that reason the church celebrates “All Saints Day”.
In the Armenian Apostolic Church, saints are commemorated on Mondays, Tuesdays, Thursdays and Saturdays. These are saints proclaimed by the Armenian Church and saints proclaimed by the Universal Church up until the 5th century. There are no fixed dates for the saints’ days except the newly canonised Holy Martyrs of the Armenian Genocide, which is celebrated on April 24th.
Source: Saints & Feasts of the Armenian Church – Patriarch Torkom Koushagian