家内

Literally ‘inside the house’ from the Sino-Japanese (on'yomi) readings of 家 (か, ka, “house”) + 内 (ない, nai, “inside”).

• IPA^(key): [ka̠na̠i]

家(か)内(ない) • (kanai) 

1. (humble) (one's own) wife
2. family
3. the inside of the house

• This word should only be used in reference to the speaker’s own wife, whereas 奥さん (okusan) is a polite term used to refer to someone else’s wife.
• 妻 (tsuma) is a more general term for a wife, and can also mean spouse.
• 家内 is offensive to some, literally meaning “in the house”, thus carrying connotations of traditional gender roles; in this case, 妻 is preferred.

• (one’s own wife): (more gender-neutral) 妻(つま) (tsuma)
• (another’s wife): 奥(おく)さん (okusan)
• (family): 家(か)族(ぞく) (kazoku)
• (the inside of the house): 屋(おく)内(ない) (okunai)

• IPA^(key): [ja̠ɯ̟t͡ɕi]

家(や)内(うち) • (yauchi) 

1. the inside of the house
2. people who live in one house

• IPA^(key): [ie̞ɯ̟t͡ɕi]

家(いえ)内(うち) • (ieuchi) 

1. people who live in one house

• IPA^(key): [ie̞na̠i]

家(いえ)内(ない) • (ienai) 

1. (rare) people who live in one house