Can 々 stand for a duplicated kanji with a different reading?


The title may not be so clear, here is what I mean:

々 is used to avoid repeating a _kanji_. In some cases, the two may not be
pronounced the same because the first consonant of the second _kanji_ is
voiced (e.g. [時]{とき}[々]{どき}), but they still have the same reading.

Are there cases where the two have different readings ( _kun'yomi_ and
_on'yomi_ , or two different _kun_ or two different _on_ )?




I wouldn't necessarily say 々 is used to avoid having to write the same _kanji_
again, but rather to make it clear that the word is obtained by duplication of
a character — moreover the reading should be doubled (with _rendaku_ where
applicable).

For example, 日本国語大辞典 (via
[kotobank.jp](https://kotobank.jp/word/%E3%80%85-597338)) has

> **のま【々】**
>
> (「々」が、かたかなの「ノ」と「マ」を組み合わせたように見えるところからの通称。「ノマ」とかたかなで表記する)
> 同じ漢字が続いて繰り返されるとき、第二字に代えて用いる記号で、 **読みは第一字に従う**
> 。漢字の「繰り返し記号」で、重字、畳字ともいい、かたかなの「ヽ」、ひらがなの「ゝ」とともに「おどり字」の一種。その形は「仝」の変形ともいわれるが、中国でも用いられていた二点  
>  「[![enter image description
> here](https://i.stack.imgur.com/4Naaz.gif)](https://i.stack.imgur.com/4Naaz.gif)」  
>  が日本で変化して出来たものか。同の字点。
>
> 日本国語大辞典 via [kotobank.jp](https://kotobank.jp/word/%E3%80%85-597338),
> emphasis added

Whether you take it as a hard rule or not, I don't think anyone would think it
a good idea to use 々 when then reading of the _kanji_ is different.

For example, one usually writes

  * 日々 _hibi_
  * 日にち _hinichi_

In principle both can also be written 日日 (which they usually aren't for
disambiguation), but I don't think that 日々 would ever be used to mean 日にち.

* * *

Just for fun, there is of course 明々後日 _shiasatte_ , but this is probably not
what you had in mind.

