First opened Tuesday, June 29, 2010
入る
はいる
- head-high (atamadaka): falls after mora 1
How to read it: a line over a kana means the voice is high there, and ↓ marks where it drops. A kana with no line is low. With no ↓ the pitch stays high to the end and does not drop even on a following particle (が, は).
to enter, to contain, to hold
Hairu is from older 這ひ入る (fafiiru): a compound of 這ひ (fafi, from 這ふ, “to crawl”) plus 入る (iru, “to enter”).
Taken apart
No breakdown is shown for this word: Wiktionary's text for it doesn't give a split that spells the word and joins to its reading, and any other split would be a guess.
Written with 入
In a sentence
入ってます。
It's occupied.
中に入れて。
Let me in.
Sentences are from Tatoeba (CC BY 2.0 FR), picked by fixed rules from a dated export and shown unchanged. Nobody has reviewed them one by one.
What Wiktionary says
Quoted line by line from Wiktionary's Etymology section for this reading, taken from one dated dump so it can't change underneath us. Nothing below is paraphrased.
- “From older 這(は)ひ入(い)る (fafiiru, modern pronunciation 這(は)い入(い)る (haiiru)), itself a compound of 這(は)ひ (fafi, modern pronunciation 這(は)い (hai), 連(れん)用(よう)形(けい) (ren'yōkei, “stem or continuative form”) of the verb 這(は)ふ (fafu, “to crawl”, modern pronunciation 這(は)う (hau))) + 入(い)る (iru, “to enter, to go in”).”
- “* /faɸiiru/ → /fawiiru/ → /faiiru/ → /fairu/ → /hairu/”
- “This shortened hairu form is first attested from the early 1200s.”
Source: Wiktionary: 入る (dump of 2026-09-02), available under CC BY-SA 4.0. Reading, meaning and part of speech from JMdict, and kanji readings from KANJIDIC2 (EDRDG).
Other readings of 入る on the same Wiktionary page
These describe other words written the same way, not はいる. They are quoted for context: the parts, layer and processes of this word are not taken from them.
いる
- “From Old Japanese. First attested in the Man'yōshū of 759. Related to 入(い)れる (ireru, “to put in”), its active form.”
- “For the development of the “to be necessary” sense, consider the English phrase to come into it in the sense “to be a factor in something”. In modern usage, this particular sense is more commonly spelled as 要(い)る.”
いる
- “From Old Japanese; see modern form 入(い)れる (ireru) for more.”
What the labels mean
- 和語 Native Japanese
- Words that were already Japanese before Chinese vocabulary arrived — usually written with kun'yomi and often short.
- Compound
- Two or more words or stems joined into one.
- Sound change
- The pronunciation shifted over the centuries.