register
1. (in writing) Writing can have formal, informal or neutral register1. (in writing) Writing can have formal, informal or neutral register. This is the tone we... More. This is the tone we use. An email to a friend should be informal. An essay should be formal. 2. (verb) To sign up for(phrasal verb) To register for a course/class/activity. "I signed up for an intensive Engl... More something. “I registered1. (in writing) Writing can have formal, informal or neutral register. This is the tone we... More for the course online.”