Verb (5-dan, る, intransitive)
1. to be piled up; to lie on top of one another
下に重なるものの色が、必ず影響する。The color of the object underneath always has an effect.
2. to come one after another; to happen over and over; to pile up (e.g. stress); to accumulate
悪いことは重なる。Bad things come one after another.
3. to overlap (each other); to occur at the same time; to happen simultaneously
そして、私たちの声が重なる。And then, our voices overlap.