What single word, also a man's name, is used by military members to indicate "I hear you"?

The term "Roger" is used by military members as a standard response to indicate that they have received and understood a message. This usage comes from the early days of radio communication, where "Roger" indicated that the message had been received clearly. The name "Roger" itself is commonly recognized as a man's name, further reinforcing its unique dual usage in both personal and military contexts.

Each of the other terms mentioned, such as "Alpha," "Bravo," and "Charlie," are part of the NATO phonetic alphabet used for clarity in communication, particularly over radio transmissions. However, these terms do not carry the same meaning of acknowledgment as "Roger" does. Therefore, "Roger" stands out for signifying understanding specifically in military communications.