My suggestion (and this is just a suggestion, mind) is that you avoid using the long word in your definition and, if you think that you recognize the correct definition from among the phonies, that you avoid choosing it and go for the one you think you might have chosen without your preknowledge. If this seems to be too much akin to the judge's instructions that the jury disregard the fact that the defendant has just shot the prosecuting attorney then perhaps you should recuse yourself. Just a suggestion, mind. Do what you feel is right.