Jesus Fish - What is it?
The Jesus fish is a well recognized symbol consisting of two curved lines that resemble the image of a fish. The symbol is also known as an Ichthys (coming from the ancient Greek word for fish). IXИYУ is an acronym coming from the first letter of words that mean “Jesus Christ God’s Son is Savior.”
Those words are:
I – Iota or Iesous - Greek for Jesus
X – Chi or Christos - Greek for Christ
И – Theta or Theou - Greek for God
Y – Upsilon or Yios/Huios - Greek for Son
У – Sigma or Soter - Greek for Savior