It rained for a few days.
After several days, a reply finally came.
会場には幾人かの学生が残っていた。
Several students remained at the venue.
many; many a; again and again
Used before a counter or noun, often with も, to emphasize a large number or repeated occurrence, as in 幾日も or 幾度も.
See also: 幾日も
幾日も雨が降り続いた。
It kept raining for many days.
その話は幾度も聞いた。
I have heard that story many times.
Interrogative prefix asking for a number, amount, distance, time, and so on. In casual modern speech, 何〜 is often more common, but 幾〜 remains useful in set expressions and written style.
See also: 幾日
完成まであと幾日かかりますか。
How many more days will it take to complete?
この荷物は幾キロありますか。
How many kilograms is this luggage?
very; so much; for a very long time
Limited use before adjectives, now mainly seen in fixed or formulaic expressions such as 幾久しい and 幾久しく. It sounds formal or literary rather than productive in ordinary conversation.
See also: 幾久しい
どうぞ幾久しくお幸せに。
May you be happy for a very long time.
幾度も同じ話を聞いた。
I heard the same story many times.
How many nights do you plan to stay?
幾つ is a standalone question word meaning 'how many' or 'how old', while 幾 is the bound prefix used inside forms such as 幾日, 幾度, and 幾久しい.
how many · how old
how much; how many; what amount · something over; and change; -odd · however much; no matter how
as much as one likes; any amount; plenty · almost none; hardly any · no matter how much; regardless of amount
how many times; how often
somewhat; to some extent; a little · some; part; portion
Standard kanji form for this prefix, used before counters, nouns, and in fixed expressions such as 幾日, 幾度, and 幾久しい.
The reading いく functions as a native Japanese numerical/interrogative prefix conventionally written with 幾, a kanji associated with small or uncertain quantities. The exact historical derivation of the Japanese reading is uncertain.
how much; how many; what amount; what extent
multiple layers; piling up
many months and years; a long passage of time
how many days · what day of the month
many generations; many ages; many years
thousands; many thousands
how many nights · some nights; several nights; a number of nights
number of years; how many years
how many months
how old; what age
a few; some; several
many; much; plenty · hardly any; not many