What's the difference between kimchee and kimchi?

Excuse me, I'm a bit confused here. Could you please clarify the distinction between "kimchee" and "kimchi"? Are they both referring to the same fermented Korean dish, or are they different in some way? I've seen both spellings used interchangeably in various contexts, so I'm not entirely sure if there's a specific reason behind each spelling. Could you elaborate on this for me?