Take the word momentarily ... growing up in the UK forty years ago it had a very definite meaning ... for a moment. -Today it can mean in a moment. Similarly the for the couple ... alternate and alternative.-While I am a traditionalist and try to use older meanings of the word, I have no problem with someone using a word in a different sense to what I am using so long as it is clear which sense it is being used.-There is no need to accuse anyone of twisting words or having biases. Though for the latter we all do that to some degree.