WordNet (r) 3.0 (2006):

chi
    n 1: the circulating life energy that in Chinese philosophy is
         thought to be inherent in all things; in traditional
         Chinese medicine the balance of negative and positive forms
         in the body is believed to be essential for good health
         [syn: qi, chi, ch'i, ki]
    2: the 22nd letter of the Greek alphabet [syn: chi, khi]

Moby Thesaurus II by Grady Ward, 1.0:

56 Moby Thesaurus words for "chi":
   Calvary cross, Christogram, Greek cross, Jerusalem cross,
   Latin cross, Maltese cross, Russian cross, T, X, ankh,
   avellan cross, chi-rho, christcross, crisscross, cross,
   cross ancre, cross botonee, cross bourdonee, cross fitche,
   cross fleury, cross formee, cross fourchee, cross grignolee,
   cross moline, cross of Cleves, cross of Lorraine, cross patee,
   cross recercelee, cross-crosslet, crossbones, crosslet, crucifix,
   cruciform, crux, crux ansata, crux capitata, crux decussata,
   crux gammata, crux immissa, crux ordinaria, dagger, ex, exing,
   fork cross, gammadion, inverted cross, long cross, papal cross,
   pectoral cross, potent cross, rood, saltire, swastika, tau,
   trefled cross, voided cross



The Free On-line Dictionary of Computing (30 December 2018):

CHI

    A wide spectrum language, the forerunner of
   Refine.

   ["Research on Knowledge-Based Software Environments at Kestrel
   Institute", D.R. Smith et al, IEEE Trans Soft Eng, SE-11(11)
   1985]

   (2006-07-11)