家か庭てい内ない

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).

• 家か庭てい内ないのルールを決きめることは大たい切せつだ。

  It is important to establish rules within the family.

• 家か庭てい内ない感かん染せんを防ふせぐため、手て洗あらいを徹てっ底ていしましょう。

  Let's wash our hands thoroughly to prevent household infection.