WordNet (r) 3.0 (2006):

spell out
    v 1: make explicit; specify in detail; "You should spell out
         your demands"
    2: spell fully and without abbreviating; "Can you spell out your
       middle name instead of just giving the initial?"
    3: orally recite the letters of or give the spelling of; "How do
       you spell this word?" "We had to spell out our names for the
       police officer" [syn: spell, spell out]

Moby Thesaurus II by Grady Ward, 1.0:

80 Moby Thesaurus words for "spell out":
   account for, adduce, allegorize, amplify, anatomize, atomize,
   circumstantiate, cite, clarify, clear up, complete, construe,
   crack, decipher, demonstrate, demythologize,
   descend to particulars, detail, document, elaborate, elucidate,
   enlarge, enlarge upon, enlighten, enter into detail, euhemerize,
   exemplify, expand, explain, explain away, explicate, exposit,
   expound, get across, get over, give full particulars,
   give reason for, give the meaning, go into, illuminate, illustrate,
   individualize, instance, interpret, itemize, labor, make clear,
   make it clear, make plain, orthographize, outspell, particularize,
   peculiarize, personalize, popularize, precise, put across,
   put over, rationalize, shed light upon, show, show how,
   show the way, simplify, solve, specialize, specify, spell,
   spell backward, substantiate, syllabize, syllable,
   throw light upon, trace out, unfold, unlock, unravel, vulgarize,
   work out, write out