Standard Lemma guide

linear

adj · name · noun · 18 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: /ˈlɪn.i.ə/
  • General-American: /ˈlɪn.i.əɹ/
  • US: Recorded audio is listed in the source snapshot.
  • India: /liː.nɪ.jə(ɾ)/
  • India: /liːn.jə(ɾ)/
  • rhymes with -ɪniə(ɹ)
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: L IH1 N IY0 ER0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Having the form of a line; straight or roughly straight; following a direct course.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Of or relating to lines.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: lineal

Antonyms: none provided

3

adj

Meaning 3

Made, or designed to be used, in a step-by-step, sequential manner.

Definition source: English Wiktionary via Wiktextract

Examples

  • a linear medium

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adj

Meaning 4

Long and narrow, with nearly parallel sides.

Definition source: English Wiktionary via Wiktextract

Topics: biology, botany, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

adj

Meaning 5

(of polynomials or polynomial equations)

Having degree one; that is, being of the form a_1x_1+a_2x_2+⋯+a_nx_n+b, where each x_i is a variable. See also Linear polynomials on Wikipedia.Wikipedia

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, sciences

Examples

  • 4x#43;5y#43;#92;frac#123;1#125;#123;2#125;z is a linear polynomial, but 4xy#43;#92;frac#123;1#125;#123;2#125;z and 4x#43;z2 are not.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

adj

Meaning 6

(of polynomials or polynomial equations)

Involving only linear polynomials. See also Linear equation on Wikipedia.Wikipedia

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, sciences

Examples

  • The graph of the linear equation y#61;ax#43;b is a straight line with slope a and y-intercept b

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

adj

Meaning 7

(of functions or maps)

An additive, homogeneous mapping; that is, a function f:V→W is linear if it distributes over vector addition (f( mathbf v+ mathbf w)=f( mathbf v)+f( mathbf w)) and respects scalar multiplication (f(c mathbf v)=cf( mathbf v)). If V and W are vector spaces over a field K, f may also be called a K-linear map. See also linear map on Wikipedia.Wikipedia

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, sciences

Examples

  • The map f#58;#92;mathbb#123;R#125;3#92;to#92;mathbb#123;R#125;2 taking (x,y,z)#92;mapsto(x#43;y#43;z,x-y#43;3z) is a linear map.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

adj

Meaning 8

(of functions or maps)

A module homomorphism; that is, a group homomorphism that commutes with scalar multiplication. See also Module homomorphism on Wikipedia.Wikipedia

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

adj

Meaning 9

A type of length measurement involving only one spatial dimension (as opposed to area or volume).

Definition source: English Wiktionary via Wiktextract

Topics: natural-sciences, physical-sciences, physics

Examples

  • a linear meter

Meaning relationships

Synonyms: none provided

Antonyms: none provided

10

adj

Meaning 10

Delivered or delivering on a fixed schedule, as opposed to on-demand.

Definition source: English Wiktionary via Wiktextract

Topics: media

Examples

  • linear TV, linear content, linear video, linear radio
  • Linear television is dead or, at least, declining.
  • Linear television includes traditional over-the-air broadcasting, as well as much cable and satellite broadcasting.

Meaning relationships

Synonyms: broadcast, tune-in

Antonyms: streaming, on-demand, non-linear

11

name

Meaning 11

A comet, cataloged as “C/1999 S4”, discovered on September 27, 1999, by the Lincoln Near-Earth Asteroid Research program in New Mexico. (See https://web.archive.org/web/20051220100856/http://www.windows.ucar.edu/tour/link=/comets/linear.html) Sometimes spelled LINEAR.

Definition source: English Wiktionary via Wiktextract

Topics: astronomy, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

12

name

Meaning 12

Initialism of Lincoln Near-Earth Asteroid Research program.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, initialism

Topics: astronomy, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

13

noun

Meaning 13

Ellipsis of linear amplifier.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, ellipsis, slang

Topics: broadcasting, media, radio

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

14

adjective

Meaning 14

of a circuit or device having an output that is proportional to the input

Definition source: Princeton WordNet 3.0

Examples

  • analogue device
  • linear amplifier

Meaning relationships

Synonyms: analogue, analog

Antonyms: none provided

15

adjective

Meaning 15

of or in or along or relating to a line; involving a single dimension

Definition source: Princeton WordNet 3.0

Examples

  • a linear measurement

Meaning relationships

Synonyms: one-dimensional

Antonyms: cubic, planar

16

adjective

Meaning 16

designating or involving an equation whose terms are of the first degree

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: additive

Antonyms: nonlinear

17

adjective satellite

Meaning 17

measured lengthwise

Definition source: Princeton WordNet 3.0

Examples

  • cost of lumber per running foot

Meaning relationships

Synonyms: running(a)

Antonyms: none provided

18

adjective satellite

Meaning 18

(of a leaf shape) long and narrow

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: elongate

Antonyms: none provided

History

Etymology

Borrowed from Latin līneāris, from līnea (“line”) + -āris (adjectival suffix), equivalent to line + -ar. Doublet of lineal.

Across languages

Translations

86 source translations are retained for this English entry.

  • Afrikaans: lineêr — having the form of a line
  • Belarusian: ліне́йны (linjéjny) — having the form of a line
  • Bulgarian: линеен (lineen) — having the form of a line
  • Catalan: lineal — having the form of a line
  • Catalan: linear — having the form of a line
  • Chinese Mandarin: 线性 (xianxing) — having the form of a line
  • Danish: lige — having the form of a line
  • Danish: lineær — having the form of a line
  • Dutch: lineair — having the form of a line
  • Faroese: linjurættur — having the form of a line
  • Finnish: suoraviivainen — having the form of a line
  • French: linéaire — having the form of a line
  • Galician: lineal — having the form of a line
  • Galician: linear — having the form of a line
  • German: linear — having the form of a line
  • Greek: γραμμικός (grammikós) — having the form of a line
  • Ancient Greek: γραμμικός (grammikós) — having the form of a line
  • Hungarian: vonalas — having the form of a line
  • Icelandic: línulegur — having the form of a line
  • Indonesian: linear — having the form of a line
  • Indonesian: linier — having the form of a line
  • Indonesian: segaris — having the form of a line
  • Italian: lineare — having the form of a line
  • Latin: rēctus — having the form of a line
  • Latin: prōrsus — having the form of a line
  • Latin: dīrēctus — having the form of a line
  • Latin: līneāris — having the form of a line
  • Latin: līneālis — having the form of a line
  • Norwegian: lineær — having the form of a line
  • Polish: linearny — having the form of a line
  • Polish: liniowy — having the form of a line
  • Portuguese: linear — having the form of a line
  • Russian: лине́йный (linéjnyj) — having the form of a line
  • Spanish: lineal — having the form of a line
  • Swedish: linjär — having the form of a line
  • Turkish: doğrusal — having the form of a line
  • Turkish: lineer — having the form of a line
  • Ukrainian: ліні́йний (liníjnyj) — having the form of a line
  • Bulgarian: линеен (lineen) — of or relating to lines
  • Finnish: suoraviivainen — of or relating to lines
  • Latin: līneāris — of or relating to lines
  • Latin: līneālis — of or relating to lines
  • Latin: līneārius — of or relating to lines
  • Malay: garis — of or relating to lines
  • Malay: garisan — of or relating to lines
  • Malay: kegarisan — of or relating to lines
  • Malay: kegarisanan — of or relating to lines
  • Malay: linear — of or relating to lines
  • Polish: linearny — of or relating to lines
  • Polish: liniowy — of or relating to lines
  • Spanish: lineal — of or relating to lines
  • Bulgarian: постъпателен (postǎpatelen) — made in a step-by-step manner
  • Finnish: suoraviivainen — made in a step-by-step manner
  • Finnish: johdonmukainen — made in a step-by-step manner
  • Latin: gradārius — made in a step-by-step manner
  • Russian: после́довательный (poslédovatelʹnyj) — made in a step-by-step manner
  • Finnish: tasasoukka — botany, of leaves: long and narrow
  • German: linealisch — botany, of leaves: long and narrow
  • German: lineal — botany, of leaves: long and narrow
  • Spanish: lineal — botany, of leaves: long and narrow
  • Afrikaans: lineêr — in mathematics, of first-degree polynomial
  • Bulgarian: линеен (lineen) — in mathematics, of first-degree polynomial
  • Czech: lineární — in mathematics, of first-degree polynomial
  • Danish: lineær — in mathematics, of first-degree polynomial
  • Finnish: lineaarinen — in mathematics, of first-degree polynomial
  • French: linéaire — in mathematics, of first-degree polynomial
  • German: linear — in mathematics, of first-degree polynomial
  • Greek: γραμμικός (grammikós) — in mathematics, of first-degree polynomial
  • Italian: lineare — in mathematics, of first-degree polynomial
  • Norwegian: lineær — in mathematics, of first-degree polynomial
  • Polish: linearny — in mathematics, of first-degree polynomial
  • Polish: liniowy — in mathematics, of first-degree polynomial
  • Portuguese: linear — in mathematics, of first-degree polynomial
  • Russian: лине́йный (linéjnyj) — in mathematics, of first-degree polynomial
  • Spanish: lineal — in mathematics, of first-degree polynomial
  • Swedish: linjär — in mathematics, of first-degree polynomial
  • Swedish: lineär — in mathematics, of first-degree polynomial
  • Afrikaans: lineêr — physics: involving only one dimension
  • Bulgarian: линеен (lineen) — physics: involving only one dimension
  • Finnish: lineaarinen — physics: involving only one dimension
  • German: linear — physics: involving only one dimension
  • Polish: linearny — physics: involving only one dimension
  • Polish: liniowy — physics: involving only one dimension
  • Russian: линейный (linejnyj) — physics: involving only one dimension
  • Russian: одномерный (odnomernyj) — physics: involving only one dimension
  • Spanish: unidimensional — physics: involving only one dimension
Real reading context

linear in complete knowledge articles