First opened Thursday, October 6, 2005
言い出す
いいだす
Pitch accent: We don't have the data for this section. No accent list gives this spelling and reading, or the two we check against disagree.
to start talking, to suggest
Iidasu is ii, the stem of 言う (iu), plus 出す (dasu).
Taken apart
Select a part to see every word so far that is taken apart with it.
Wiktionary's text doesn't split this word, so each part is one of its kanji (with the okurigana written after it), with the reading and the dictionary meaning KANJIDIC2 gives that character — a word doesn't always use every sense of its kanji.
In a sentence
これはだれかの言い出したことかい。
Was this somebody else's idea?
そんな事言い出すとは思わなかったよ。
I didn't expect that to come from you.
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 言(い)い (ii, 連(れん)用(よう)形(けい) (ren'yōkei, “stem or continuative form”) of the verb 言(い)う (iu)) + 出(だ)す (dasu).”
Source: Wiktionary: 言い出す (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).
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.