Whenever I see 「よく」, I have to ask someone whether it means "often" or "good".

For example, here is a sentence from my book:


I thought all three 「よく」s meant "often" (eg. "often takes notes"), but a Japanese friend said they all mean "good" (eg. "takes good notes"). He said "often takes notes" would be 「よくノートを取り」. However, he doesn't know why.

How can you tell the two usages apart?

  • It's a bit different from what you're asking, but you can also see how the placement of frequency words can affect the meaning here: japanese.stackexchange.com/questions/29249/…
    – Yuu
    Commented Nov 16, 2015 at 22:35
  • @Yuu Wait, but only 「よく(often)」 is a frequency word. Are you saying it's the same 「よく」 in both cases!? I thought 「ノートをよく取り」 uses the irregular conjugation of 「いい」, like in 「よくありません」? If not, does that mean I can say 「ノートをあまり取り」 for "take bad notes", or 「ノートを時々取り」 for "take okay notes"? Commented Nov 16, 2015 at 22:47
  • @BlueRaja-DannyPflughoeft Without any kanji, it is. よく can be used to mean 'well' and 'often', as well as other meanings. Do not mistake よく with よい - the latter can also be conjugated into よく, which might be the one that is confusing you.
    – Yuu
    Commented Nov 16, 2015 at 22:49

3 Answers 3


As Yuu wrote, there is a tendency that よく immediately before a verb often means “well” and that よく at the beginning of a sentence often means “often,” but it is by no means a firm rule. Word order is one of the clues, but in the end, the distinction depends on the context.

For example, suppose that someone said


Does it really mean “You will get a good mark on an exam if you are listening to your teacher’s lecture often (like two thirds of the time)”? It may, depending on the context, but I think that in most contexts, it is more likely that the speaker meant “You will get a good mark on an exam if you are listening to your teacher’s lecture carefully,” even though this means that the speaker used a slightly less natural word order.

  • 2
    Is it natural to say both? E.g. 「よくノートをよく取り」?
    – z0r
    Commented Aug 27, 2020 at 23:11

It's the placement of the frequency word (よく).

先生の講義をよく聞いて -> Listen well

よく先生の講義を聞いて -> Often listen

ノートをよく取り -> Take good notes

よくノートを取り -> Often take notes

それをよく覚えれば -> (If) Remember well

If you don't see the pattern yet, よく + verb (directly preceding the verb) would generally have the connotation of 'well', while よく anywhere else in the sentence would likely be 'often', with the focus of the sentence shifted elsewhere.


良く, yoku, means both "frequently" and "well". It's the same kanji as yoi but in the adverb form. If you think about doing something well as being similar to doing it thoroughly and doing it thoroughly as similar to doing it often perhaps you can see the relatedness of the two concepts. One of the pleasures of learning a new language is that it makes you think outside your accustomed modes.

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