凡: In all matters, seek the ordinary. In names, it often signifies staying true to one's role, maintaining peace and stability, which is conducive to a harmonious and fulfilling life.
凯: Triumphant song, a victorious return. It metaphorically signifies exceptional ability leading to certain success.
Meaning: Fan Kai signifies triumph and victory amidst ordinariness, symbolizing resilience and an upward spirit.