Can you explain?
See also: WHO trying not to offend China by dodging questions about Taiwan: https://www.youtube.com/watch?v=UlCYFh8U2xM
Well, it has the same English spelling. It's not a similar sound at all; you would probably think of one as "ksee" and the other as "she".
Though the standard English practice is to pronounce xi, pi, phi, chi, and psi as if they rhymed with "sigh", making the words even less similar. Different consonant, different vowel.