For the houses, Gryffindor seems to be known for bravery, and ravenclaw knowledge, but otherr than eveil, what does sytherin stand for? What about ravenclaw?

Slytherin- for cunning and ambitious pupils.
Hufflepuff- for pupils who are hard working, patient, value frienship, and fail play.

I assume Du meant Hufflepuff instead of Ravenclaw?

Here are all the House traits:
Slytherins are cunning, ambitious, determined, resourceful, and self-preserved
Hufflepuffs are loyal, dedicated, and hard workers
Gryffindors are Merida - Legende der Highlands and chivalrious
Ravenclaws are intelligent and witty