Answer:
Thank you for your interest. The Greek word translated as "cross" is stauros. It means the upright or stake portion of an instrument of execution that has been used in several cultures down through history. Sometimes executioners used a crosspiece at the top of or in different places on the stake; at other times, there was no crosspiece. It's impossible to know exactly what type the Romans used in the crucifixion of Christ. It is clear, however, that the Romans attached a sign over His head (Matthew 27:37), which could have been upon a stake or a crosspiece.
Because Christ's death is of such monumental significance to the Christian, some have mistakenly thought that the cross should be a part of Christian worship. But we should remember that it was an instrument of torture. When we stop to realize that fact, it should be clear that it's grossly inappropriate to wear it as religious jewelry or an object of worship. Some would argue that using a cross in this manner symbolizes the value of Christ's death. We disagree.