A large community generally centered around "relating" to a character one way or another, also the act of doing so. Essentially, after looking at a character and identifying with or as them, the definitions split.
1. Coping; many people kin characters to cope with their situation or illness.
2. Reincarnation; others believe in the Multiverse Theory
and when someone dies, their soul may hop between universes.
3. Just for fun; kinning isn't that serious, so some may identify with characters for the fun of it.