noun which may take the genitive case particle 'no', noun
within the family; in the home; domestic
Used to describe matters, relationships, or events occurring inside a family or household. Often appears in compound terms like 家庭内暴力 (domestic violence) or 家庭内感染 (household infection).
It is important to establish rules within the family.
A problem arose within the family.
Let's wash our hands thoroughly to prevent household infection.
The couple resolved the issue within their household.
家内 looks similar to 家庭内 but is a different word meaning 'household' or, informally, 'my wife', not 'within the family'.
Compound of 家庭 (family, home) + 内 (inside). The reading かていない follows standard on'yomi.