chóngdié

to overlap / to superimpose / to telescope / to run together / to duplicate / one over another / superposition / an overlap / redundancy / reduplication (in Chinese grammar, e.g. [[散散步<sànsànbù>]] to have a stroll)

dié

to fold / to fold over in layers / to furl / to layer / to pile up / to repeat / to duplicate

jiǎcídiécí

pseudo-affixation

duīdié

to pile up / to put layer upon layer

tàodié

overlapping / nesting / to interleave

céngluándiézhàng

range upon range of mountains (idiom)

shānluánchóngdié

overlapping ranges of high mountains (idiom)

céngdié

layer upon layer / tiered

tàidiéjiā

superposition of states (quantum mechanics)

dòngcíchóngdié

verb reduplication