Literature Reference: 子，古代尊称男子；墉，城墙，喻坚固。——《诗经》 Zi, ancient honorific for men; Yong, city wall, symbolizing strength. Source from 'The Book of Songs'.
子: Descendants, offspring. It also refers to the favored children of heaven, those who are learned and virtuous.
墉: The city wall, a towering rampart.
Meaning: Zi Yong signifies a man as solid as a city wall, symbolizing stability and reliability.