海: The vast ocean symbolizes boundless expansiveness. In the context of a name, it conveys aspirations of grand ambition, profound knowledge, and a broad, inclusive heart.
唯: "Only, unique. In a name, it often signifies uniqueness, hope, and being one of a kind, which is beneficial for attracting noble assistance."
Meaning: The name Hai Wei has a beautiful rhythm, symbolizing vastness like the ocean and uniqueness.