let on

let on
    v 1: make known to the public information that was previously
         known only to a few people or that was meant to be kept a
         secret; "The auction house would not disclose the price at
         which the van Gogh had sold"; "The actress won't reveal how
         old she is"; "bring out the truth"; "he broke the news to
         her"; "unwrap the evidence in the murder case" [syn:
         {unwrap}, {disclose}, {let on}, {bring out}, {reveal},
         {discover}, {expose}, {divulge}, {break}, {give away}, {let
         out}]
    

54 Moby Thesaurus words for "let on":
      acknowledge, act, act a part, admit, admit everything, affect,
      allow, assume, avow, betray, bluff, come clean, concede, confess,
      cop a plea, counterfeit, cover up, disclose, dissemble,
      dissimulate, divulge, fake, feign, four-flush, gammon, give away,
      grant, let on like, let out, make a pretense, make as if,
      make believe, make like, open up, out with it, own, own up, play,
      play a part, play possum, playact, plead guilty, pretend, profess,
      put on, sham, simulate, spill, spill it, spit it out, tell,
      tell all, tell the truth, uncover