X-the letter “X” or a marking in the shape of an “X” is symbolic of an area of significance or of particular interest. An “X” can symbolize hidden treasures (earthly or spiritual)
Xerox machine-symbolic of copying someone’s behavior
X-ray-to see a medical x-ray is symbolic of having keen insight or awareness about an issue. To have x-ray vision is symbolic of having a spiritual perception to see people’s true intentions in a situation, Neh. 6:12