Yuka屋根 and 天井 both relate to the top of a building — but one is outside and one is inside. Do you know which is which?
Rei屋根 (yane) is the roof — the outside top of a building. 天井 (tenjou) is the ceiling — the inside top of a room. Simple rule: outside vs. inside!
| 屋根 (yane) | 天井 (tenjou) | |
|---|---|---|
| Meaning | Roof (exterior top) | Ceiling (interior top) |
| Location | Outside | Inside |
| Example | 屋根が雨漏りしている。 | 天井が高い部屋が好きです。 |
屋根 — The Roof Outside
屋根 (yane) is the roof of a building — what you see from outside, what keeps the rain off. It is used in phrases about construction, weather damage, and architecture.
- 屋根が雨漏りしている。— The roof is leaking.
- 屋根の上に猫がいる。— There’s a cat on the roof.
- 屋根を修理してもらった。— I had the roof repaired.
- 屋根裏部屋に荷物を入れた。— I put luggage in the attic (literally: under-the-roof room).
天井 — The Ceiling Inside
天井 (tenjou) is the ceiling — the interior surface above your head inside a room. Literally, 天 = heaven/sky, 井 = well — poetically, the “sky of the room.”
- 天井が高い部屋は開放感がある。— A room with a high ceiling feels open.
- 天井に染みがついている。— There’s a stain on the ceiling.
- 天井からシャンデリアが下がっている。— A chandelier hangs from the ceiling.
Figurative Use of 天井
天井 is also used figuratively to mean “upper limit” or “cap” — similar to “ceiling” in English.
- 価格が天井に達した。— Prices have hit the ceiling.
- 天井知らずの値上がり。— Price increases with no ceiling in sight.
Common Mistakes for English Speakers
Since both 屋根 and 天井 can translate as “ceiling/roof” in loose English, learners sometimes mix them. Remember: if you’re inside looking up — 天井. If you’re outside looking at the top of the building — 屋根.
Quick Quiz
Which word means the surface above your head inside a room?
Answer: 天井
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