Standard Lemma guide

vector

noun · verb · 17 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.

  • UK: /ˈvɛktə/
  • US: vĕk'tər
  • US: /ˈvɛktɚ/
  • US: Recorded audio is listed in the source snapshot.
  • Australia: Recorded audio is listed in the source snapshot.
  • rhymes with -ɛktə(ɹ)
  • CMU ARPABET: V EH1 K T ER0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A directed quantity, one with both magnitude and direction; the signed difference between two points.

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, natural-sciences, physical-sciences, physics, sciences

Examples

  • Velocity is a vector defined by the speed of an object and its direction.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: tensor

2

noun

Meaning 2

A directed quantity, one with both magnitude and direction; the signed difference between two points.

Any member of a (generalized) vector space.

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, natural-sciences, physical-sciences, physics, sciences

Examples

  • The vectors in #123;#92;mathbbQ#125;#91;X#93; are the single-variable polynomials with rational coefficients: one is #92;textstylex#123;42#125;#43;#92;frac1#123;137#125;x-1.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: tensor

3

noun

Meaning 3

A directed quantity, one with both magnitude and direction; the signed difference between two points.

An ordered tuple, originally one representing a directed quantity, but by extension any one-dimensional matrix.

Definition source: English Wiktionary via Wiktextract

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

Examples

  • Computers store many types of data as vectors for ease of processing.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: tensor, matrix

4

noun

Meaning 4

A directed quantity, one with both magnitude and direction; the signed difference between two points.

A chosen course or direction for motion, as of an aircraft.

Definition source: English Wiktionary via Wiktextract

Topics: aeronautics, aerospace, aviation, business, engineering, mathematics, natural-sciences, physical-sciences, physics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: tensor

5

noun

Meaning 5

A kind of dynamically resizable array.

Definition source: English Wiktionary via Wiktextract

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

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

A kind of dynamically resizable array.

A memory address containing the address of a code entry point, usually one which is part of a table and often one that is dereferenced and jumped to during the execution of an interrupt.

Definition source: English Wiktionary via Wiktextract

Qualifier: operating systems

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

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

noun

Meaning 7

A kind of dynamically resizable array.

A graphical representation using outlines; vector graphics.

Definition source: English Wiktionary via Wiktextract

Usage: attributive

Topics: computer-graphics, computing, engineering, mathematics, natural-sciences, physical-sciences, programming, sciences

Examples

  • a vector image, vector graphics

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

noun

Meaning 8

A carrier of a disease-causing agent.

A DNA molecule used to carry genetic information from one organism into another.

Definition source: English Wiktionary via Wiktextract

Qualifier: molecular biology

Topics: epidemiology, medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

noun

Meaning 9

A carrier of a disease-causing agent.

A person or entity that passes along an urban legend or other meme.

Definition source: English Wiktionary via Wiktextract

Topics: epidemiology, human-sciences, medicine, sciences, social-science, sociology

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

10

noun

Meaning 10

A carrier of a disease-causing agent.

A recurring psychosocial issue that stimulates growth and development in the personality.

Definition source: English Wiktionary via Wiktextract

Topics: epidemiology, human-sciences, medicine, psychology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

11

noun

Meaning 11

Forces, developments, phenomena, processes, systems, etc. which influence the trajectory of history (e.g. imperialism)

Definition source: English Wiktionary via Wiktextract

Topics: history, human-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

12

verb

Meaning 12

To set (particularly an aircraft) on a course toward a selected point.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

13

verb

Meaning 13

To redirect to a vector, or code entry point.

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

14

noun

Meaning 14

(genetics) a virus or other agent that is used to deliver DNA to a cell

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: virus

Narrower terms: cosmid

15

noun

Meaning 15

a variable quantity that can be resolved into components

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: variable, variable quantity

Narrower terms: vector product, cross product, vector sum, resultant, radius vector

16

noun

Meaning 16

any agent (person or animal or microorganism) that carries and transmits a disease

Definition source: Princeton WordNet 3.0

Examples

  • mosquitos are vectors of malaria and yellow fever
  • fleas are vectors of the plague
  • aphids are transmitters of plant diseases
  • when medical scientists talk about vectors they are usually talking about insects

Meaning relationships

Synonyms: transmitter

Antonyms: none provided

Broader terms: agent

Narrower terms: transducing vector, gene delivery vector, carrier, immune carrier

17

noun

Meaning 17

a straight line segment whose length is magnitude and whose orientation in space is direction

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: straight line

Narrower terms: ray

History

Etymology

Etymology tree Proto-Indo-European *weǵh- Proto-Indo-European *wéǵheti Proto-Italic *weɣō Latin vehō Proto-Indo-European *-tōr Proto-Italic *-tōr Latin -tor Latin vectorlbor. English vector Learned borrowing from Latin vector (“carrier, transporter”), from vehō (“to carry, transport, bear”), also ultimately the root of English vehicle. The “person or entity that passes along an urban legend or other meme” sense derives from the disease sense. The mathematics sense was coined by Irish mathematician and astronomer William Rowan Hamilton in 1846.

Across languages

Translations

131 source translations are retained for this English entry.

  • Afrikaans: wektor — directed quantity
  • Arabic: مُتَّجِهٌ (muttajihun) — directed quantity
  • Arabic: مُتَّجِهاتٌ (muttajihātun) — directed quantity
  • Arabic: شُعاعٌ (šuʕāʕun) — directed quantity
  • Arabic: أَشِعَّةٌ (ʔašiʕʕatun) — directed quantity
  • Bulgarian: вектор (vektor) — directed quantity
  • Catalan: vector — directed quantity
  • Chinese Cantonese: 向量 (hoeng3 loeng6) — directed quantity
  • Chinese Mandarin: 向量 (xiàngliàng) — directed quantity
  • Chinese Mandarin: 矢量 (shǐliàng) — directed quantity
  • Czech: vektor — directed quantity
  • Danish: vektor — directed quantity
  • Dutch: vector — directed quantity
  • Esperanto: vektoro — directed quantity
  • Finnish: vektori — directed quantity
  • French: vecteur — directed quantity
  • Galician: vector — directed quantity
  • Georgian: ვექტორი (vekṭori) — directed quantity
  • German: Vektor — directed quantity
  • Greek: διάνυσμα (diánysma) — directed quantity
  • Hebrew: וקטור (vektór) — directed quantity
  • Hindi: सदिश (sadiś) — directed quantity
  • Hungarian: vektor — directed quantity
  • Icelandic: vigur — directed quantity
  • Ido: vektoro — directed quantity
  • Irish: veicteoir — directed quantity
  • Italian: vettore — directed quantity
  • Japanese: ベクトル (bekutoru) — directed quantity
  • Khmer: វ៉ិចទ័រ (vəctɔə) — directed quantity
  • Korean: 벡터 (bekteo) — directed quantity
  • Latvian: vektors — directed quantity
  • Latvian: vektōrs — directed quantity
  • Lithuanian: vektorius — directed quantity
  • Malay: vektor — directed quantity
  • Māori: pere — directed quantity
  • Marathi: सदिश (sadiś) — directed quantity
  • Mongolian: чиглэл (čiglel) — directed quantity
  • Norwegian Bokmål: vektor — directed quantity
  • Norwegian Nynorsk: vektor — directed quantity
  • Persian: بردار — directed quantity
  • Polish: wektor — directed quantity
  • Portuguese: vector — directed quantity
  • Portuguese: vetor — directed quantity
  • Romanian: vector — directed quantity
  • Russian: ве́ктор (véktor) — directed quantity
  • Serbo-Croatian: вектор — directed quantity
  • Serbo-Croatian: vektor — directed quantity
  • Slovene: vektor — directed quantity
  • Spanish: vector — directed quantity
  • Swedish: vektor — directed quantity
  • Tagalog: tugano — directed quantity
  • Tagalog: bektor — directed quantity
  • Tamil: திசையன் (ticaiyaṉ) — directed quantity
  • Thai: เวกเตอร์ (vék-dtə̂ə) — directed quantity
  • Turkish: vektör — directed quantity
  • Turkish: yöney — directed quantity
  • Vietnamese: đại lượng có hướng — directed quantity
  • Vietnamese: đại lượng hữu hướng — directed quantity
  • Vietnamese: hướng lượng — directed quantity
  • Bulgarian: курс (kurs) — aviation: chosen course or direction for motion
  • Catalan: vector — aviation: chosen course or direction for motion
  • Dutch: koers — aviation: chosen course or direction for motion
  • Finnish: kurssi — aviation: chosen course or direction for motion
  • Galician: vector — aviation: chosen course or direction for motion
  • Georgian: კურსი (ḳursi) — aviation: chosen course or direction for motion
  • Georgian: მიმართულება (mimartuleba) — aviation: chosen course or direction for motion
  • Irish: veicteoir — aviation: chosen course or direction for motion
  • Malay: vektor — aviation: chosen course or direction for motion
  • Portuguese: vector — aviation: chosen course or direction for motion
  • Russian: курс (kurs) — aviation: chosen course or direction for motion
  • Russian: направле́ние (napravlénije) — aviation: chosen course or direction for motion
  • Spanish: vector — aviation: chosen course or direction for motion
  • Swedish: vektor — aviation: chosen course or direction for motion
  • Arabic: ناقِلٌ (nāqilun) — carrier of a disease-causing agent
  • Arabic: نَواقِلُ (nawāqilu) — carrier of a disease-causing agent
  • Bulgarian: преносител (prenositel) — carrier of a disease-causing agent
  • Chinese Mandarin: 病媒 (bìngméi) — carrier of a disease-causing agent
  • Czech: přenašeč — carrier of a disease-causing agent
  • Czech: vektor — carrier of a disease-causing agent
  • Finnish: taudinkantaja — carrier of a disease-causing agent
  • Finnish: tartunnanlevittäjä — carrier of a disease-causing agent
  • French: vecteur — carrier of a disease-causing agent
  • Georgian: ვექტორი (vekṭori) — carrier of a disease-causing agent
  • Greek: φορέας (foréas) — carrier of a disease-causing agent
  • Hindi: रोगवाहक (rogvāhak) — carrier of a disease-causing agent
  • Hungarian: bacilusgazda — carrier of a disease-causing agent
  • Hungarian: betegséghordozó — carrier of a disease-causing agent
  • Hungarian: vektor — carrier of a disease-causing agent
  • Irish: veicteoir — carrier of a disease-causing agent
  • Italian: vettore — carrier of a disease-causing agent
  • Japanese: ベクター (bekutā) — carrier of a disease-causing agent
  • Khmer: វ៉ិចទ័រ (vəctɔə) — carrier of a disease-causing agent
  • Malay: vektor — carrier of a disease-causing agent
  • Māori: kaitītaritari — carrier of a disease-causing agent
  • Norwegian Bokmål: vektor — carrier of a disease-causing agent
  • Norwegian Nynorsk: vektor — carrier of a disease-causing agent
  • Polish: przenosiciel — carrier of a disease-causing agent
  • Polish: wektor — carrier of a disease-causing agent
  • Portuguese: vetor — carrier of a disease-causing agent
  • Russian: перено́счик (perenósčik) — carrier of a disease-causing agent
  • Spanish: vector — carrier of a disease-causing agent
  • Finnish: levittäjä — sociology: person or entity that passes along an urban legend or other meme
  • Polish: wektor — memory address containing the address of a code entry point
  • Bulgarian: вектор (vektor) — programming: kind of array
  • Bulgarian: едномерна матрица (ednomerna matrica) — programming: kind of array
  • Czech: vektor — programming: kind of array
  • Finnish: vektori — programming: kind of array
  • Galician: vector — programming: kind of array
  • Georgian: ვექტორი (vekṭori) — programming: kind of array
  • Hebrew: וקטור (vektór) — programming: kind of array
  • Korean: 벡터 (bekteo) — programming: kind of array
  • Latvian: vektors — programming: kind of array
  • Malay: vektor — programming: kind of array
  • Portuguese: vetor — programming: kind of array
  • Romanian: vector — programming: kind of array
  • Russian: ве́ктор (véktor) — programming: kind of array
  • Russian: масси́в (massív) — programming: kind of array
  • Spanish: vector — programming: kind of array
  • Vietnamese: mảng một chiều — programming: kind of array
  • Catalan: vector — DNA molecule used to carry genetic information from one organism into another
  • Czech: vektor — DNA molecule used to carry genetic information from one organism into another
  • Finnish: vektori — DNA molecule used to carry genetic information from one organism into another
  • Irish: veicteoir — DNA molecule used to carry genetic information from one organism into another
  • Norwegian Bokmål: vektor — DNA molecule used to carry genetic information from one organism into another
  • Norwegian Nynorsk: vektor — DNA molecule used to carry genetic information from one organism into another
  • Bulgarian: насочвам (nasočvam) — set (particularly an aircraft) on a course toward a selected point
  • Finnish: asettaa kurssi — set (particularly an aircraft) on a course toward a selected point
  • Georgian: მიმართვა (mimartva) — set (particularly an aircraft) on a course toward a selected point
  • Georgian: წარმართვა (c̣armartva) — set (particularly an aircraft) on a course toward a selected point
  • Georgian: მიმართულების მიცემა (mimartulebis micema) — set (particularly an aircraft) on a course toward a selected point
  • Welsh: fectoru — set (particularly an aircraft) on a course toward a selected point
Real reading context

vector in complete knowledge articles