The spelling of the word "armier" is somewhat tricky. It is pronounced as /ˈɑːmɪə/. The "a" sound is a long one, hence it is spelled with an "a" followed by an "r". The "m" and "i" sounds are pronounced together as a diphthong, represented by the "ie" in the spelling. Finally, the "r" at the end is pronounced with a slight emphasis, making it known that the word refers to someone in the military. Overall, the spelling of "armier" is a great example of how English can be both confusing and fascinating.