一いっ冊さつ

い

っ

さ

つ

Meanings

1

one copy; one volume

Counter for bound items like books, magazines, notebooks; 冊 counts volumes or copies.

Please give me one copy of this book.

彼かれは毎まい月つき一いっ冊さつは小しょう説せつを読よむ。

He reads at least one novel a month.

〈物もの〉を一いっ冊さつ買かうto buy one copy of something
本ほん屋やで小しょう説せつを一いっ冊さつ買かった。
I bought one novel at the bookstore.
〈物もの〉を一いっ冊さつ読よむto read one volume/book
夏なつ休やすみに本ほんを一いっ冊さつ読よむつもりだ。
I plan to read one book over summer vacation.
一いっ冊さつずつ〈動どう詞し〉one copy at a time / one volume each
生せい徒とたちにノートを一いっ冊さつずつ配くばった。
I handed out one notebook to each student.

一いち部ぶN2
一部 is a more general counter for copies of documents, publications, or sets, while 一冊 specifically counts bound volumes.
一いっ巻かん
一巻 can mean one volume of a multi-volume work, often used for series or scrolls, whereas 一冊 is a straightforward count of physical books.
一いっ本ぽん
一冊 is the everyday counter for a bound book or volume, while 一本 for a book is a narrower, more bookish usage limited to manuscripts or textual versions.

Compound of 一 (いち, 'one') + 冊 (さつ, counter for books/volumes), with regular rendaku voicing of さつ to ざつ after いち, yielding いっさつ.