The currency in Portugal is the euro, which makes it a very worry-free destination for many other Europeans to visit when it comes to money matters (it is the currency of 13 European countries, used by 315 million people).
What do the colors of the flag mean? What do the colors of the flag mean? According to custom and tradition, white signifies purity and innocence; red, hardiness and valor; and blue signifies vigilance, perseverance, and justice. Ask the Flag Expert a Question. View more flag questions.
For example; a white flag means, among other things, surrender or peace, a red flag can be used as a warning signal, and a black flag can mean war, or determination to defeat enemies. Orientation of a flag is also used for communication, though the practice is rarely used given modern communication systems.