Use 'aru hi' to introduce a specific, significant event in the past when telling a story or anecdote.
Word in 30 Seconds
- Used to introduce a specific event in the past.
- Commonly used as a narrative opening in stories.
- Indicates an unspecified but significant day in the past.
Overview
- 1概要：「ある日」は、過去の物語やエピソードを語り始める際に使われる、非常に一般的で便利な表現です。特定の具体的な日付を指定するのではなく、「いつかのある時点」に焦点を当てます。2) 使用パターン：文頭に置かれることが最も多く、物語の導入として機能します。「ある日、私は〜」「ある日、彼らは〜」といった形で、その後に続く出来事を引き立てます。また、文中で時間の経過を示す際にも使用可能です。3) 一般的な文脈：童話や小説の書き出し、日常会話での思い出話、あるいは過去の不思議な体験を話す際によく使われます。特に「昔々」に続く形で物語の始まりを示す定番のフレーズです。4) 類似語との比較：「いつか」は未来の不確定な時点を指すことが多いのに対し、「ある日」は過去の特定の出来事を指す点が大きく異なります。「先日」は「数日前」という比較的近い過去を指しますが、「ある日」は時期を問わず、語り手にとって重要な出来事があった日を指します。
Examples
ある日、公園で古い時計を見つけました。
everydayOne day, I found an old watch in the park.
ある日、突如としてその現象は収束した。
formalOne day, the phenomenon suddenly subsided.
ある日、急に思い立って旅行に出た。
informalOne day, I suddenly decided to go on a trip.
ある日、彼はついに真実を語り始めた。
academicOne day, he finally began to tell the truth.
Common Collocations
Common Phrases
ある日のこと
The event of a certain day
ある日の午後
One afternoon
Often Confused With
Used for future or indefinite time. 'Aru hi' is strictly for the past.
Refers to a specific, recent few days. 'Aru hi' is more general and story-focused.
Grammar Patterns
How to Use It
Usage Notes
Aru hi is neutral in register and can be used in both formal and casual settings. It is primarily used for narrative purposes. It is not used for calendar dates or specific scheduled times.
Common Mistakes
Learners often use it for future plans, which is incorrect. Another mistake is using it as a synonym for 'sometimes', which is wrong. It must refer to a single, specific past day.
Tips
Use for storytelling
Start your anecdotes with 'aru hi' to instantly signal to your listener that a story is beginning. It creates a natural flow for narrative events.
Avoid using for future
Do not use 'aru hi' for future events. Use 'itsuka' instead if you are talking about something that might happen one day.
Classic story starter
Just like 'Once upon a time', 'aru hi' is the standard way to begin Japanese folktales and personal legends.
Word Origin
Aru (a certain) + hi (day). It evolved from the need to mark the start of a specific event in a narrative timeline.
Cultural Context
It is deeply embedded in Japanese storytelling culture. It sets the stage for a change in the status quo.
Memory Tip
Think of it as 'A certain day' in a storybook. When you see 'Aru', think of 'A' specific day.
Frequently Asked Questions
4 questions「先日」は数日前という比較的近い過去を指しますが、「ある日」は時期を限定せず、物語のきっかけとなる日を指します。
いいえ、基本的には過去の出来事を語る際に使います。未来の話をする場合は「いつか」という表現を使うのが適切です。
はい、可能です。ただし、物語の転換点を示すために文頭に置かれるのが最も一般的です。
書き言葉でも話し言葉でも使われます。小説などの文章だけでなく、日常の会話でも頻繁に登場します。
Test Yourself
___、公園で不思議な猫に出会いました。
過去の特定の出来事を語る導入として「ある日」が最適です。
Score: /1
Summary
Use 'aru hi' to introduce a specific, significant event in the past when telling a story or anecdote.
- Used to introduce a specific event in the past.
- Commonly used as a narrative opening in stories.
- Indicates an unspecified but significant day in the past.
Use for storytelling
Start your anecdotes with 'aru hi' to instantly signal to your listener that a story is beginning. It creates a natural flow for narrative events.
Avoid using for future
Do not use 'aru hi' for future events. Use 'itsuka' instead if you are talking about something that might happen one day.
Classic story starter
Just like 'Once upon a time', 'aru hi' is the standard way to begin Japanese folktales and personal legends.
Examples
4 of 4ある日、公園で古い時計を見つけました。
One day, I found an old watch in the park.
ある日、突如としてその現象は収束した。
One day, the phenomenon suddenly subsided.
ある日、急に思い立って旅行に出た。
One day, I suddenly decided to go on a trip.
ある日、彼はついに真実を語り始めた。
One day, he finally began to tell the truth.
Related Content
This Word in Other Languages
Related Vocabulary
More general words
能力
A1Nouryoku refers to the mental or physical power, skill, or capacity required to perform a specific task or function. It can describe both innate talent and skills acquired through learning and practice.
異常
A1A word used to describe something that deviates from the normal state, standard, or expected pattern. It often implies a problem, malfunction, or an extraordinary occurrence that requires attention or investigation.
～について
A2About, concerning; indicates topic.
〜について
B1About, concerning; on the subject of.
～ぐらい
A2about, approximately
ぐらい
A2About; approximately; to the extent of.
ごろ
A2About, approximately (time).
うえ
A2At a higher position than.
絶対
B1Absolutely; definitely; never.
絶対に
B1Absolutely; definitely.
