Quick answer
宇 is the kanji for "House". The most common reading is う (u). Mnemonics and example sentences are listed below.
Meaning
House
Also : Roof · Eaves · Heaven
Learn 宇 with SRS
Free to start — no credit card. Track every review with spaced repetition.
Readings
kun = Japanese reading · on = Chinese reading
Practice writing
Trace the kanji stroke by stroke with a visual guide.
Stroke Order
6 strokes
Radicals
Memory Aid
The kanji 宇 represents 'EAVES'. Think of this shape as a picture representing the concept of eaves.
On-reading: う — remember this sound by associating it with eaves.
Example Sentences
宇宙に関心を持つようになったのは、幼い頃に見た映画がきっかけです。
うちゅうにかんしんをもつようになったのは、おさないころにみたえいががきっかけです。
I became interested in space because of a movie I saw when I was young.
宇宙飛行士になるためには、高度な訓練が必要です。
うちゅうひこうしになるためには、こうどなくんれんがひつようです。
To become an astronaut, advanced training is required.
Vocabulary using 宇
Grammar to study at this level
- [Noun] + に伴い~に伴い (ni tomonai) - Along with / In accordance with
- [Noun] + をはじめ~をはじめ (wo hajime) - Starting with / Including
- [Noun] + に応じて~に応じて (ni oujite) - According to / In response to
- [Noun] + から + [Noun] + にかけて~にかけて (ni kakete) - From...to / In the area of
- [Noun] + に限り~に限り (ni kagiri) - Limited to / Only
Last updated Jun 11, 2026
Learn 宇 with Spaced Repetition
InitialJ uses scientifically proven SRS to help you memorize kanji and vocabulary for the JLPT. N5 is free forever; no credit card required.