凯: Triumphant song, a victorious return. It metaphorically signifies exceptional ability leading to certain success.
勇:
Brave, fierce. Often used in male names, embodying the qualities of responsibility, courage, and a commanding masculine presence.
Meaning: The character '凯' symbolizes victory and triumph, representing success and glory; the character '勇' signifies bravery and fearlessness, embodying courage and strength.