Pertinent
Part of speech: adjective
Definition: relevant to a subject or matter.
Example sentence: There's a lot of places where the image of a cube as a thing of power is pertinent. I don't know why that is. I don't have any mythic explanation for it, but it seems to work for people.
Apposite
Part of speech: adjective
Definition: appropriate, relevant, well-suited; fitPositioned at rest in respect to another, be it side-to-side, front-to-front, back-to-back, or even three-dimensionally: in apposition.
Part of speech: noun
Definition: Something that is apposite