Wallet is the one word every bitcoin user learns early, and world turns it into a place to explore. With BTC at the front, the name sets clear boundaries while promising variety within them. It sounds approachable and slightly consumer-facing, well suited to newcomers who feel overwhelmed by choice. The .com ending reinforces the international reading of world and gives the name a natural home for content published in several languages.
In the Wallet & Storage bundle, this name leans towards consumers and international audiences. Fitting projects include an online retailer shipping hardware wallets to many countries, a guide translated into several languages that helps beginners choose a first wallet, a magazine reporting on wallet design and usability, or a regional help centre network serving users in their own language.