And so long as the willfully ignorant cling to the fanciful notion that dictionary definitions are like some sort of egalitarian etymological smorgasbord, where they get to pick and choose which definition they want to interchangeably apply, and when, there is no hope of counteracting their ignorance and mendacity.
Good point. The "Theory of Evolution" could be called the "Tangerine of Evolution" and it wouldn't make a whit of difference; facts are still facts; data is still data. When the facts & data aren't on one's side, what is one to do but drag in irrelevant points (like the definitions of words, moral 'implications' of believing a theory, or a theory's founder 'recanting' it on his deathbed).
IMO, when engaged in a discussion, not a good idea to let the other person drag these irrelevant points out - best to stick to the science after making a curt point. (If only I could learn to follow my own advice...)