SUNDAY n. 2 definitions
The first day of the week, -- consecrated among Christians to rest from secular employments, and to religious worship; the Christian Sabbath; the Lord's Day. Advent Sunday, Low Sunday, Passion Sunday, etc. See under Advent, Low, etc.
SYMBOLISM n.
The act of symbolizing, or the state of being symbolized; as, symbolism in Christian art is the representation of truth, virtues, vices, etc., by emblematic colors, signs, and forms.