A male given name from Italian, equivalent to English Mark or Marc
"Marco arrived at the party just as his friend Mark left."
Shouted by a player of the game Marco Polo. Compare Polo.
"The children shouted marco to signal that it was their turn to find the person they were chasing."
Marco comes from a common Romance root shared by Italian, Portuguese, and Spanish. The word entered English as the name of an old gold coin without undergoing any change in its original meaning.