Members of the modern workforce might be surprised to learn that if they use the word “weekend” in a workplace email, chances are they’re sending the message up the org chart. The same is true for the words “voicemail,” “driving,” “okay”—- and even a choice four-letter word that rhymes with “hit.” However a new study shows that certain words and phrases indeed are reliable indicators of whether workplace emails are sent to someone higher or lower in the corporate hierarchy.