Are there differences in meaning or formality in the various readings of 家中?


In this example sentence,

[時計]{とけい}がないので[家中]{かちゅう}を捜{さが}した。  
I searched all over the house for the missing watch.

Jim Breen's WWWJDIC (and Jisho, and tangorin.com) list 家中 【うちじゅう; かちゅう(家中);
いえじゅう】 whole family; all (members of) the family; all over the house

The suggestion
[here](https://dictionary.goo.ne.jp/word/en/%E5%AE%B6%E4%B8%AD/#je-5520) seems
to suggest that it 家中 is read うちじゅう

Do these various readings have different meanings or registers?




家中{うち/いえじゅう} has two meanings. One is "an entire house", the other is "all
people living in a house".

家中{かちゅう} has three meanings. One is "the inside of a house", another is "all
people living in the house", and the other is "generic name of vassals of a
feudal lord in Edo period".

However 家中{かちゅう} is rarely used in present days as the meanings of "the inside
of a house", "all people living in the house"

Source: <https://dictionary.goo.ne.jp/srch/jn/%E5%AE%B6%E4%B8%AD/m0u/>




家中{うち/いえじゅう} has two meanings. One is "an entire house", the other is "all
people living in a house".

家中{かちゅう} has three meanings. One is "the inside of a house", another is "all
people living in the house", and the other is "generic name of vassals of a
feudal lord in Edo period".

However 家中{かちゅう} is rarely used in present days as the meanings of "the inside
of a house", "all people living in the house"

Source: <https://dictionary.goo.ne.jp/srch/jn/%E5%AE%B6%E4%B8%AD/m0u/>

