Hurt/Comfort - A plot style in which one character is either emotionally or physically harmed, and another character must rescue or comfort them. This is probably the most popular way to set the stage for slash interaction between two straight (er, confused) characters.
hurt/comfort - one is hurt, the other provides comfort, thereby showing his love, a favorite form of fanfic
Hurt/Comfort. A story where the author injures one character purely for the purpose of having another character tend to him/her, often leading to sex.
Hurt/Comfort - fic convention in which one of the characters is hurt or sick and the other one has to help them, thereby getting them past any obstacles they may have had in their potential relationship
Hurt/comfort. Story in which one character is hurt, physically or emotionally, so that another character can comfort him or her.
Stands for hurt/comfort. These types of stories focus on one partner or the other (usually Kuryakin) suffering some sort of abuse and being helped by his friend and ally (usually Solo.) The reason behind the appeal of these stories is something even its most voracious readers can't quite fathom, but the popularity of the genre is enormous.
hurt/comfort. One partner/friend is hurt, the other comforts him.
"Hurt/comfort." One or more characters will be hurt (physically or emotionally or mentally), and one or more characters will suffer angst over this and try to comfort the victim. This is a popular category within fanfiction.