I don't know about any other similarities, but "astroturfing" and "gaslighting" are English words that share this in common: they both have a useful meanings th

I don't know about any other similarities, but "astroturfing" and "gaslighting" are English words that share this in common: they both have a useful meanings that seems to be primarily used correctly and in context; however they also are bandied about in non-canonical ways by a much smaller number of people with high repetition.