This is the 6028th most frequent Polish word.
atacms
"ATACMS" is not a Polish word; it refers to the U.S. Army's "Army Tactical Missile System."
Here, "ATACMS" refers to a specific missile system as a proper noun.
Polska zamierza zakupić system rakietowy ATACMS do obrony narodowej.
Poland intends to purchase the ATACMS missile system for national defense.
In this usage, "ATACMS" represents the technical name of the system.
System ATACMS jest zdolny do precyzyjnego rażenia celów na dalekim dystansie.
The ATACMS system is capable of precisely striking targets at long distances.
Here, "ATACMS" indicates the proper name of the military equipment.