Why do JLPT N5 learners confuse 三日 with 四日?

Both words occupy adjacent semantic territory, which is exactly why the JLPT uses them as distractors for each other on multiple-choice items. The fastest way to stop confusing them is to study them as a pair, write a one-sentence contrast in your own words, and drill the pair specifically rather than each word in isolation.

Is 三日 or 四日 more common on JLPT N5?

Both appear in the JLPT N5 curriculum and either may show up on a given exam. Don't try to predict which one the test will choose — learn to distinguish them and you'll be safe regardless. Both belong to the Daily Life Nouns theme of N5 vocabulary.

How do I practice this confusion pair?

Free option: visit /try and pick a confusion drill. Paid option: none — JLPT Mastery is free during launch. Whichever route you take, the engine specifically re-tests pairs you've gotten wrong rather than rotating through general vocabulary review.

JLPT N5 · Beginner · Meaning confusion

三日 vs 四日

Q: What's the difference between 三日 and 四日?

三日 (みっか) means "three days; 3rd (of month)" and 四日 (よっか) means "four days; 4th (of month)". These adjacent dates both end in the ~日 (ka) suffix. The double consonant (sokuon) in both "mik-" and "yok-" makes their phonetic patterns sound very similar.

Why JLPT N5 learners mix up 三日 (みっか, “three days; 3rd (of month)”) and 四日 (よっか, “four days; 4th (of month)”).

三日

みっか

three days; 3rd (of month)

noun

四日

よっか

four days; 4th (of month)

noun

Theme: Daily Life NounsJLPT N5

Why these get confused

These adjacent dates both end in the ~日 (ka) suffix. The double consonant (sokuon) in both "mik-" and "yok-" makes their phonetic patterns sound very similar.

How to tell them apart

Anchor on the meaning, not the form. 三日 (three days; 3rd (of month)) and 四日 (four days; 4th (of month)) live in adjacent semantic territory. Memorize the boundary, not just each word.
Shared kanji: 日 appears in both. The other character is what changes the meaning — focus your attention there.
Read the example sentences below. Seeing each word in its natural context builds a faster lookup than studying the dictionary form alone.

In a sentence

三日 (three days; 3rd (of month))

三日前に来ました。
三月三日はひな祭りです。

四日 (four days; 4th (of month))

四日間旅行しました。
四月四日に生まれました。

How JLPT tests this pair

On JLPT N5, this pair shows up as a vocabulary meaning question. You see one word and pick its English equivalent from four options — one of which will be the other word in this pair, chosen as a distractor precisely because of the overlap.

Sample item

「三日」の意味は？

A. three days; 3rd (of month) (correct)
B. four days; 4th (of month) (distractor)
C. (other plausible meaning)
D. (other plausible meaning)

Drill this pair until it sticks

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Practice N5 confusion pairs

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Frequently asked

三日 vs 四日

Why JLPT N5 learners mix up 三日 (みっか, “three days; 3rd (of month)”) and 四日 (よっか, “four days; 4th (of month)”).

三日

みっか

three days; 3rd (of month)

noun

四日

よっか

four days; 4th (of month)

noun

Theme: Daily Life NounsJLPT N5

Why these get confused

These adjacent dates both end in the ~日 (ka) suffix. The double consonant (sokuon) in both "mik-" and "yok-" makes their phonetic patterns sound very similar.

How to tell them apart

Anchor on the meaning, not the form. 三日 (three days; 3rd (of month)) and 四日 (four days; 4th (of month)) live in adjacent semantic territory. Memorize the boundary, not just each word.
Shared kanji: 日 appears in both. The other character is what changes the meaning — focus your attention there.
Read the example sentences below. Seeing each word in its natural context builds a faster lookup than studying the dictionary form alone.