In the field of roleplaying terminology can be on of the trickier parts since it's a constantly evolving movement. During the last decade the freeform scene has come much closer to the larp scene. Anna Westerling put's some of these terms on the map.

Further reading Naming the Middle Child in Crossing Habitual Borders (2013)

Anna Westerling is a Swedish organizer and game designer who is part of the Vi åker jeepcollective. She was the designer and producer of En stilla middag med familjen (tr. A nice evening with the family, 2007), and produced Nordic Larp (Book) and Knutpunkt 2006 and Knutpunkt 2010. Since 2013 she organizes the Stockholm Scenario Festival.

Site: Anna Westerling Twitter: anna_hoppetossa