Standard Lemma guide

bisect

noun · verb · 6 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.

  • General-American: bī-sĕkt'
  • General-American: /baɪˈsɛkt/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • rhymes with -ɛkt

1

noun

Meaning 1

A bisector, which divides into two equal parts.

Definition source: English Wiktionary via Wiktextract

Topics: geometry, mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

An envelope, card, or fragment thereof showing an affixed cut half of a regular issued stamp, over which one or more postal markings have been applied. Typically used in wartime when normal lower rate stamps may not be available.

Definition source: English Wiktionary via Wiktextract

Topics: hobbies, lifestyle, philately

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

verb

Meaning 3

To cut or divide into two parts.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

Examples

  • The river bisects the town.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

verb

Meaning 4

To cut or divide into two parts.

To divide an angle, line segment, or other figure into two equal parts.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

Topics: geometry, mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

verb

Meaning 5

To cut or divide into two parts.

To perform a binary search on files in source control in order to identify the specific change that introduced a bug etc.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

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

6

verb

Meaning 6

cut in half or cut in two

Definition source: Princeton WordNet 3.0

Examples

  • bisect a line

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: cut

History

Etymology

From bi- (“bi-, two”) + Latin secāre (“to cut”).

Across languages

Translations

22 source translations are retained for this English entry.

  • Bulgarian: разполовявам (razpolovjavam) — to cut or divide into two parts
  • Bulgarian: разполовя (razpolovja) — to cut or divide into two parts
  • Finnish: puolittaa — to cut or divide into two parts
  • Finnish: halkaista kahtia — to cut or divide into two parts
  • German: halbieren — to cut or divide into two parts
  • Hawaiian: pālua — to cut or divide into two parts
  • Hungarian: félbevág — to cut or divide into two parts
  • Hungarian: elfelez — to cut or divide into two parts
  • Ido: bisekar — to cut or divide into two parts
  • Māori: weherua — to cut or divide into two parts
  • Russian: разделать пополам (razdelatʹ popolam) — to cut or divide into two parts
  • Swedish: halvera — to cut or divide into two parts
  • Swedish: dela i tu — to cut or divide into two parts
  • Bulgarian: разполовявам (razpolovjavam) — geometry: to divide an angle, line segment or other figure into two equal parts
  • Bulgarian: разполовя (razpolovja) — geometry: to divide an angle, line segment or other figure into two equal parts
  • Finnish: puolittaa — geometry: to divide an angle, line segment or other figure into two equal parts
  • Greek: διχοτομώ (dichotomó) — geometry: to divide an angle, line segment or other figure into two equal parts
  • Hungarian: felez — geometry: to divide an angle, line segment or other figure into two equal parts
  • Hungarian: megfelez — geometry: to divide an angle, line segment or other figure into two equal parts
  • Ido: bisekar — geometry: to divide an angle, line segment or other figure into two equal parts
  • Inuktitut: ᑎᕆᖅᑯᓕᐅᕐᓂᖅ (tiriqkoliorniq) — geometry: to divide an angle, line segment or other figure into two equal parts
  • Italian: bisecare — geometry: to divide an angle, line segment or other figure into two equal parts