Understanding ～日
The suffix ～日 (にち) is commonly used to indicate the day of the month, such as '3日' meaning the 3rd day. It is also used to express duration in days, for example, '3日間' means 'for three days.'
Usage Notes
When used for dates, ～日 follows the month and specifies the exact day. For durations, ～日 can be combined with 間 (かん) to emphasize the length of time.
Common Collocations
- ～日 (～にち): indicates the day of the month.
- ～日間 (～にちかん): indicates a period lasting several days.
- 誕生日 (たんじょうび): birthday, often combined with a date like '10日'.
Tips
Be careful not to confuse ～日 as just a number; it specifically relates to dates or durations. Also, note that some days have special readings (e.g., 1日 is ついたち, 2日 is ふつか), so learning these exceptions is important for natural usage.