Apposite

1. Strikingly appropriate or relevant; well suited to the circumstance or in relation to something.
2. Positioned at rest in respect to another, be it side-to-side, front-to-front, back-to-back, or even three-dimensionally: in apposition.
3. Related, homologous.

(appropriate or relevant): to the point; pertinent

(positioned at rest in respect to another):

(related): connected