What brevity term acknowledges the sighting of a specified reference point?

The brevity term that acknowledges the sighting of a specified reference point is "Contact." This term is widely used in military communications to indicate that a reference point, target, or enemy position has been visually identified or engaged by the unit.

Using "Contact" helps to streamline communications during operations, ensuring that all team members are aware of the exact situation and location of the identified point. This term is critical in the context of coordinating fire support and ensuring that all units are synchronized during planning and execution phases.

The other terms, while they may be used in various contexts, do not specifically relate to the acknowledgment of sighting a reference point. For instance, "Rifle" often refers to a specific order regarding firing a weapon or engaging a target, not the sighting itself. Similarly, "Ice" and "Snake" do not have established meanings relating directly to the acknowledgment of a reference point in military or fire support terms.