Blazoning is the way a coat-of-arms is described. One starts by giving the background colour of the shield and then saying what the main charge of the shield is and its tincture and so on.  The language used in the past to describe a shield was French or Latin, but with time the language of each country started being used. In Malta, like the United Kingdom, we use the English language, except for several technical terms which are written in the original language of heraldry, French. A simple example would be the coat of arms of Valletta which would be:

gules a lion rampant or surmounted by a mural crown or with four turrets