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
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