Good article on how a word can get misused, overused and lose its meaning

"Has Diversity Lost Its Meaning," by Anna Holmes in the New York Times Magazine, Oct. 27, 2015

Excerpt:

‘‘Diversity,’’ Chang says, ‘‘has become a code word for ‘all those other folks.’ ’’ The problem with code words is that they’re lazy: They’re broad rather than specific, and can provide cover for inaction — the ‘‘I don’t know how to do this or what it means, so can someone else please do the work for me?’’ maneuver.