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うち (uchi) Japanese meaning: one's house | Kotomora
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I'll relax at home today.
Everyone in my family likes dogs.
Related words 家（いえ）is the neutral, standard word for a house as a building, while うち carries a personal 'my own home/family' nuance and is common in casual speech.
家(うち) is the everyday, casual word for one's home, while 自宅 is more formal and typical of written or official contexts.
うち is a casual way to say 'while' or 'during', overlapping with 間 in time expressions like 若いうち／若い間.
うち is the broader noun for "inside" or "among", while この内 specifically points to a set already mentioned.
Don't confuse with 家（うち）means 'one's home/family', while 内（うち）is a different word meaning 'inside' or 'within'—easy to confuse since they're pronounced identically.
家 (うち) is a casual noun for 'home' or one's own family, while 家 (け) is a formal suffix used after surnames to name a family lineage.
Written forms うち Usage 24%
Kana spelling is the norm for this word.
ウチ Usage 73%
家うち Usage 3%
Kanji spelling is possible but less common; the word is usually written in kana.
Etymology The historical derivation is uncertain; うち has been used since Old Japanese to mean 'inside' or 'one's own place', and the kanji 家 is conventionally associated with the meaning of home/family.
