X (disambiguation)

X or χ (the letter "chi") may refer to:

Chi and the Recusant's Sigil, which are symbols represented by an X.
The χ-blade, a legendary weapon introduced in Kingdom Hearts Birth by Sleep.
Kingdom Hearts χ, a Kingdom Hearts game exclusive to PC browsers.
Kingdom Hearts Unchained χ, a Kingdom Hearts game exclusive to smartphones.
Hunter-X, a powerful enemy ship in Kingdom Hearts II.
Luxord, number X in Organization XIII.

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