Sovereign can have a few different meanings, depending on the context:
* A supreme ruler, especially a monarch. For example, "The Queen is the sovereign of the United Kingdom."
* Having supreme power or authority. For example, "The country is a sovereign state."
* Independent and self-governing. For example, "The nation is striving for economic sovereignty."
* A gold coin formerly used in Britain.
Let me know if you have any other words you'd like help with!