An enlisted man of the lowest rank in the Army or Marines(noun)
WordNet. Princeton University. 2010.
Use "common soldier" in a sentence
""Thunderer's ballocks, Sergeant, but we're getting a poor sort of common soldier these days.""
"The Theban hoplites drilled endlessly and, whether common soldier or wealthy cavalryman, were ruled by iron discipline."
"‘One is a common soldier named Theoparlis, another is the King’s lover, Nicanor; the third is a soldier called Antipater - he it was who led the charge against the Paiones."