Apprentice [29] One bound by legal agreement to work for another for a specific amount of time in return for instruction in a trade, art, or business.

Father [458] a man who exercises paternal care over other persons; To perform the tasks or duties of a male parent. Mostly biological.

Teacher [380] A person who teaches or instructs, esp. as a profession; instructor. A meaner, more canon version of Snape than the Mentor category.

Brothers [25] Two males having the same parents, or one parent in common with each other. May be biological or adopted, officially or not.

Guardian [471] One that guards, watches over, or protects. One who is legally responsible for the care and management of the person or property of an incompetent or a minor. Not biological.

Keepers of the Snitch [14] Stories which feature someone other than Snape as a guardian to Harry (Snape must still have regular interaction with Harry).

Canon [67] Stories that obey the canon universe and storyline. Does not contradict events in the books.

Stepfather [11] Where Snape is married to Harry's biological mother, whether or not that is Lily. Snape is not Harry's biological father.

Severus Centric [95] Stories told from Snape's point of view.

Comrades [156] Working together for a common cause. Comrade: A person who shares one's interests or activities; a friend or companion.

Healer [137] One that heals or attempts to heal. Healing: the process of recovery, repair, and restoration.

Misc [111] Stories that don''t fall into any other categories, but still feature no slash interaction between Snape and Harry.

Crossover [3] Fics that crossover with another fandom.

Mentor [365] To serve as a trusted counselor or teacher to another person, especially in occupational settings. A nicer Snape than canon.

Fic Fests [139] Stories as responses to certain Fests are archived here! Usually some sort of challenge response stories.

Enemy [114] A person who feels hatred for, fosters harmful designs against, or engages in antagonistic activities against another; an adversary or opponent.

Reverse [51] Opposite or contrary in position, direction, order, or character: Harry Potter takes care of Severus Snape.