the.com/juxtaposition
Two things parked side by side so the contrast does all the talking.
means The deliberate placement of two elements near each other so their differences or similarities sharpen.
from From Latin juxta (beside) plus Latin positio (placing) — literally a beside-placement, assembled into one tidy noun.
Comedy fuelMost visual jokes are just two clashing things adjacent.
Art weaponPainters pair light and dark to force the eye.
No glue neededIt implies nearness, not connection or blending.