fableing - a fictional identity facet in a median system, who has experiences and feelings in common with both fictives and fictionkin in a way that makes them feel positioned somewhere between or adjacent to the two  .
facet - a headmate or alter that is not clearly separated from other identities, and typically without amnesiac barriers .
factive - a headmate based on non-fictional source material, including celebrities, family members, and historical figures .
factkin - a human who identifies as another human, typically from the present  . The concept is generally thought to have been created by trolls and is still perpetuated by trolls .
factling - a facet identity that falls between factive and fogtive identities  .
faeborn - an individual that is a transmigrated soul of a nonhuman being from this world and/or other worlds that is of possible mythical/mystical origins, currently living in a human form . Coined in 1992 my Melishal, faeborn are generally considered distinct from otherkin, although the distinction may blur from person to person.
fictherian - a term describing one’s experiences of “animality”, as is described by the parent term “therian”, but signifying one’s source of experiences are not of this current earth . A portmanteau of “fiction” and “therian”.
fictionflicker - someone who temporarily takes on the identity of one or more fictional characters, only to pick up another temporary identity after the previous one fades . Sometimes likened to a temporary fictotype  or frequent cameo shifts of various characters . Fictionflickers may or may not experience memories and pick up habits associated with their current identities.
fiction-hearted - an individual with a strong feeling of connection to or appreciation for a fictional character or fictional species .
fictionkin(d) - an individual who identifies as a person, creature, or race from fiction  . They may believe they are a specific character or a non-canon character of the same race or world. This identification may be based on spiritual beliefs, psychological beliefs, or something in between. Fictionkin cannot drop their identities at will; for those who choose nonhuman identities for coping or enjoyment, see copinglink or otherlink.
fictive - a headmate based on fictional source material, including popularized media characters or original characters .
fictotype - the fictional character or species a fictionkin identifies as .
fogtive - a plural identity resembling a factive, but where one's identity is part factive and part "something else", which may nor may not be defined . Created by Tumblr user quoipunk, and is intentionally broad.
folcintera - the unique experience of an individual who non-physically identifies as an animal from or deeply intertwined with mythos/folklore; a person who experiences a form of involuntary, intrinsic nonhumanity with aspects of both animality and sapience, and which originates from or is personally intrinsically tied to mythology, folklore, or other forms of cultural legend .
fronting - when an individual in a system takes control of their shared body .
fuzztive - a plural identity resembling a fictive, but where one's identity is part fictive and part "something else", which may nor may not be defined . Created by Tumblr user quoipunk, and is intentionally broad.