Standard Lemma guide

folio

noun · verb · 13 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Received-Pronunciation: /ˈfəʊlɪəʊ/
  • Received-Pronunciation: /ˈfəʊljəʊ/
  • Canada, General-American: /ˈfoʊliˌoʊ/
  • Australian: /ˈfəʉliˌəʉ/
  • Queensland Recorded audio is listed in the source snapshot.
  • New-Zealand: /ˈfɐʉliˌɐʉ/
  • rhymes with -əʊljəʊ
  • CMU ARPABET: F OW1 L IY2 OW0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A leaf of a book or manuscript.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A page of a book, that is, one side of a leaf of a book.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

A page number. The even folios are on the left-hand pages and the odd folios on the right-hand pages.

Definition source: English Wiktionary via Wiktextract

Usage: broadly

Topics: media, printing, publishing

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

A sheet of paper folded in half.

Definition source: English Wiktionary via Wiktextract

Usage: broadly

Topics: media, printing, publishing

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

A book made of sheets of paper each folded in half (two leaves or four pages to the sheet); hence, a book of the largest kind, exceeding 30 centimetres in height.

Definition source: English Wiktionary via Wiktextract

Usage: broadly

Topics: media, printing, publishing

Examples

  • A rare copy of Shakespeare’s First Folio.

Meaning relationships

Synonyms: F, fo, 2o

Antonyms: none provided

6

noun

Meaning 6

A wrapper for loose papers.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

noun

Meaning 7

A page in an account book; sometimes, two opposite pages bearing the same serial number.

Definition source: English Wiktionary via Wiktextract

Topics: accounting, business, finance

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

noun

Meaning 8

A protective case with a flap that folds to cover the screen of a mobile device.

Definition source: English Wiktionary via Wiktextract

Topics: computing, engineering, mathematics, natural-sciences, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

noun

Meaning 9

A leaf containing a certain number of words; hence, a certain number of words in a piece of writing, as in England, in law proceedings 72, and in chancery, 90; in New York, 100 words.

Definition source: English Wiktionary via Wiktextract

Usage: dated

Topics: law

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

10

verb

Meaning 10

To put a serial number on (a folio or page, or on all the folios or pages of a book); to foliate, to page.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

11

noun

Meaning 11

a book (or manuscript) consisting of large sheets of paper folded in the middle to make two leaves or four pages

Definition source: Princeton WordNet 3.0

Examples

  • the first folio of Shakespeare's plays

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: book, volume

12

noun

Meaning 12

a sheet of any written or printed material (especially in a manuscript or book)

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: leaf

Antonyms: none provided

Broader terms: sheet, piece of paper, sheet of paper

Narrower terms: flyleaf, interleaf, page

13

noun

Meaning 13

the system of numbering pages

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: pagination, page number, paging

Antonyms: none provided

Broader terms: number

History

Etymology

From Middle English folio (“leaf of a book”), borrowed from Medieval Latin foliō, Late Latin foliō, Latin foliō, the ablative singular form of Late Latin folium (“leaf or sheet of paper”), Latin folium (“leaf of a plant”), ultimately from Proto-Indo-European *bhleh3- (“bloom, flower”). Doublet of foil and folium, and distantly related to phyllo and phyllon. Senses 1, 2, 3.1, 5, and 6 relating to a leaf or page are derived from Medieval Latin foliō in references; sense 5 (“page in an account book”) may be derived from Italian foglio (“rectangular sheet of paper”), from Latin folium. Senses 3.2 and 3.3 relating to a paper size are from Italian in foglio or its etymon Latin in foliō.

Across languages

Translations

16 source translations are retained for this English entry.

  • Bulgarian: но́мер (nómer) — page number
  • Finnish: sivunumero — page number
  • French: folio — page number
  • Czech: dvojlist — sheet of paper folded in half
  • Czech: přeložený list — sheet of paper folded in half
  • Finnish: puoliksi taitettu paperiarkki — sheet of paper folded in half
  • Finnish: kaksitaite — sheet of paper folded in half
  • Czech: folio — book made of sheets of paper each folded in half
  • Czech: foliant — book made of sheets of paper each folded in half
  • Finnish: folio — book made of sheets of paper each folded in half
  • Finnish: kaksitaite — book made of sheets of paper each folded in half
  • Bulgarian: плик (plik) — wrapper for loose papers
  • Finnish: asiakirjakansi — wrapper for loose papers
  • Māori: kōpaki — wrapper for loose papers
  • Finnish: tilikirjan sivu — page in an account book
  • Finnish: arkki — leaf containing a certain number of words; certain number of words in a piece of writing
Real reading context

folio in complete knowledge articles