Are there any rules or guidelines as to when to pronounce 行く as いく or ゆく?

I looked it up on jisho.org, and the two pronunciations have the exact same definition. I tend to hear ゆく more often in songs, but that is just anecdotal.

  • 7
    I've always wondered why lyrics often say いく in kana even when the singer clearly sings ゆく...
    – user1478
    Commented Jul 28, 2013 at 22:45
  • 3
    ゆく is for songs and train destinations.
    – oldergod
    Commented Jul 29, 2013 at 1:30
  • 2
    I'm not confident enough to put this as an answer, but 行く is pretty much always いく, except for specific exceptions. In addition to train destinations and songs, there's 行方不明{ゆくえふめい}, for example.
    – Questioner
    Commented Jul 29, 2013 at 6:27
  • 6
    Something interesting I've seen. ゆく and いく are considered a distinct separate readings of 行く, and not just some kind of dialectical pronunciation or euphonic change (音便). When I lived in Japan, I was watching one of those "variety" shows. They were talking about the kanji(s) with the most readings (the most being I believe). Anyway, the contestants had to collectively produce all the readings for each one. When doing , they left out ゆく and were surprised to learn that いく and ゆく were in fact different.
    – istrasci
    Commented Jul 29, 2013 at 15:20

2 Answers 2


The explanation in デジタル大辞泉 is:


My translation / synopsis is as follows:

いく has been seen from ancient times but from the Heian period both have been in use. いく has almost exactly the same meaning as ゆく but in olden times, ゆく was used more widely: Putting the use of double entendres and word play based on 生く aside, then the use of 行く in Japanese poetry (waka/tanka) or symbolism can almost always read as ゆく. As a result, when expressions such as 「過ぎ行く」「散り行く」 are used stylistically in written language they are normally read as ゆく. However forms such as ゆきて have stopped being used in favour of forms derived from いく such as いって and いった.


They both mean the same of course, and there is plenty of info you can find explaining that ゆく is an older version. In addition, I have found that while いく tends to be a somewhat casual version of ゆく. いく is easier to pronounce than ゆく. Also, FWIW, I think いく is used more often than ゆく in conversation.

  • 9
    「ゆく tends to be a more informal version of いく」>>>逆だと思います。「ゆく is also easier to pronounce than いく」>>>逆だと思います。「ゆく is used more often than いく in conversation」>>>逆だと思います。「ゆく」と「いく」を取り違えられたんですかね・・・?
    – user1016
    Commented Dec 22, 2014 at 13:21
  • 1
    I meant the opposite!
    – LaunLaun
    Commented Dec 23, 2014 at 6:42
  • あ、やっぱり?www・・・・・
    – user1016
    Commented Dec 24, 2014 at 8:03

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .