The Collaborative International Dictionary of English v.0.48:

Catechize \Cat"e*chize\, v. t.
   See Catechise.
   [1913 Webster]

WordNet (r) 3.0 (2006):

catechize
    v 1: examine through questioning and answering [syn:
         catechize, catechise]
    2: give religious instructions to [syn: catechize,
       catechise]

Moby Thesaurus II by Grady Ward, 1.0:

49 Moby Thesaurus words for "catechize":
   ask, beat into, brainwash, broaden the mind, civilize, condition,
   demonstrate, direct, edify, educate, enlighten, examine,
   give instruction, give lessons in, ground, guide, illumine, imbue,
   implant, impregnate, impress, inculcate, indoctrinate, infix,
   inform, infuse, inoculate, inquire, instill, instruct, interrogate,
   interview, open the eyes, program, pump, query, question, quiz,
   reeducate, school, set right, sharpen the wits, show, show how,
   teach, teach a lesson, teach the rudiments, test, worm out of