洪: Bountiful blessings as vast as the heavens. This phrase denotes a fortune as immense as the sky, often symbolizing auspiciousness, well-being, and prosperity.

武: "Mighty and Majestic," often used in boys' names, embodies the essence of strength, robustness, and a formidable physique. This character is believed to promote physical fortitude and ensure a safe and secure life.