开 本

kāi běndictionary entry

book format based on how a full printing sheet is cut or folded (often abbreviated to 開|开[kāi] after a numeral, e.g. 16-kai and 32-kai, roughly A4 and A5 respectively)

Sources & editorial notes

Reference definitions: CC-CEDICT contributors and MDBG, CC BY-SA 4.0. Source release 2026-10-27T01:55:52Z. Imported 2026-10-27. Definition wording and meaning order are retained. Recognized pronunciation references are displayed with tone marks; the original source record is available below.

Source record: cd-22d2a30856e21f1c. Source SHA-256: bbc4b27f26bee1a262f4d7939667a040c7857c7fc0200a2fa7a86d3352a09eae.

Original source entry:

開本 开本 [kai1 ben3] /book format based on how a full printing sheet is cut or folded (often abbreviated to 開|开[kai1] after a numeral, e.g. 16-kai and 32-kai, roughly A4 and A5 respectively)/

Reference definitions and teaching material have separate provenance.

Reference information

The definitions above are from CC-CEDICT. Examples and usage notes are available on selected entries.

Character information

View the individual characters. Their meanings do not necessarily explain the meaning of the whole word.

Other forms in these source records: 開本

开
kāi
to open (transitive or intransitive) / (of ships, vehicles, troops etc) to start / to turn on / to put in operation / to operate / to run / to boil / to write out (a prescription, check, invoice etc) / (directional complement) away / off / carat (gold) / abbr. for Kelvin, 開爾文|开尔文[Kāi ěr wén] / abbr. for 開本|开本[kāi běn], book format
本
běn
(bound form) root / stem / (bound form) origin / source / (bound form) one's own / this / (bound form) this / the current (year etc) / (bound form) original / (bound form) inherent / originally / initially / capital / principal / classifier for books, periodicals, files etc

Reference definitions from CC-CEDICT.