家|いえie[2]odaka (tail-high)

1. nounhouse; residence; dwelling; home
   木立こだちの間あいだに家いえが見みえる。↗

   I see a house among the trees.
2. nounfamily; household
   あの家いえの繁栄はんえいは大戦たいせん中ちゅうからのことだ。↗

   The prosperity of the family dates from the Great War.
3. nounlineage; family name

• Synonym住まいすまいNeutralWhere one lives, or daily living; softer in tone than 「家」 and often made honorific with 「お」. Carries no sense of family.
• Synonym住宅じゅうたくNeutralSino-Japanese word for a building people live in; common in real-estate and policy contexts, as in 「住宅ローン」. Does not mean family.
• Synonym宅たくWrittenHouse or home; mostly seen in 「お宅」 and 「宅配」 or as a humble word for one's own home. On its own it is written/formal.
• Synonym家宅かたくWrittenLegal and official term for a house and its grounds, as in 「家宅捜索」. Not used in everyday speech.
• Synonym住居じゅうきょNeutralA place to live, or the business of living there day to day; centers on the dwelling as somewhere to live. 「家」 can also mean the household or family.
• Synonym家屋かおくWrittenThe house as a building itself; common in legal, statistical, and disaster-reporting contexts. Does not mean family.
• Synonym自宅じたくNeutralOne's own home, stressing that it is yours, as in 「自宅で仕事」. Slightly more formal than 「家」; does not mean family members.
• Synonym人家じんかWrittenWritten word for inhabited houses or signs of habitation, as in 「人家まばら」. Focuses on whether an area is inhabited.
• SynonymハウスNeutralLoanword; on its own usually a plastic greenhouse, or used in names. For your own home in daily talk, say 「家」.
• SynonymメゾンWrittenFrench loanword used mostly in apartment-building names; not used alone in daily speech. Say 「家」 for a house.
• SynonymアビタシオンWrittenFrench loanword used almost only as a name for apartment blocks; not used for one's home in everyday speech.
• Synonym家庭かていNeutralThe family as a living unit, centered on relationships among members, as in 「家庭環境」. Does not refer to the building.
• Synonym居宅きょたくWrittenWritten, legal term for the home one usually lives in, as in 「居宅介護」. In daily speech say 「家」.
• Synonym住屋じゅうおくWrittenRare written word for a dwelling. In everyday use say 「家」, which can also mean family.
• Synonym居館きょかんWrittenA mansion used as a residence; mostly in historical contexts such as lords' or nobles' homes. Not for ordinary households.
• Synonym住家じゅうかWrittenA house for living in; uncommon, often contrasted with shops and the like. In daily use say 「家」 or 「住宅」.
• Related住所じゅうしょNeutralMainly an address, the word for registration forms and the like. 「家」 is the house and family itself.
• Relatedお宅おたくFormalHonorific for the other person's home or family; also serves as a second-person pronoun. Not used for your own home.
• Related住処すみかWrittenA dwelling place, but also an animal's den or a criminal's hideout; slightly literary. 「家」 is the ordinary word.
• AntonymよそNeutralAnother place, someone else's home, or outsiders; opposite of 「家」 as one's own home and one's own people in the inside–outside contrast.

For everyday talk about a house or home, use 「家」. Use 「住宅」 in real-estate and policy contexts, 「お宅」 for someone else's home, 「家庭」 when the focus is on family members, and 「住所」 when filling in an address.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. （いえ　うち）人ひとが生活せいかつに用もちいる建物たてもの。住居じゅうきょ。家屋かおく。
2. （いえ　うち）家庭かてい。家族かぞく。
3. （いえ）家系かけい。