equiv·o·cate /ɪˈkwɪvəˌket/
  (vi.)說模稜兩可的話,支吾
  E·quiv·o·cate v. i. [imp. & p. p. Equivocated p. pr. & vb. n. Equivocating.]  To use words of equivocal or doubtful signification; to express one's opinions in terms which admit of different senses, with intent to deceive; to use ambiguous expressions with a view to mislead; as, to equivocate is the work of duplicity.
     All that Garnet had to say for him was that he supposed he meant to equivocate.   --Bp. Stillingfleet.
  Syn: -- To prevaricate; evade; shuffle; quibble. See Prevaricate.
  E·quiv·o·cate v. t. To render equivocal or ambiguous.
     He equivocated his vow by a mental reservation.   --Sir G. Buck.
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  equivocate
       v : be deliberately ambiguous or unclear in order to mislead or
           withhold information [syn: beat around the bush, tergiversate,
            prevaricate, palter]