Standard Lemma guide

sideline

noun · verb · 14 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.

  • /ˈsaɪdlaɪn/
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: S AY1 D L AY2 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A line at the side of something.

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

Something that is additional or extra or that exists around the edges or margins of a main item.

Definition source: English Wiktionary via Wiktextract

Examples

  • She started the business as a sideline to her regular work and it ended up becoming the greater source of income.
  • Soup need not be just a sideline to a meal; if you like, it can be the main course.
  • I often do electronic repairs as a sideline.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

A line for hobbling an animal by connecting the fore and the hind feet of the same side.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

A line defining the side boundary of a playing field. Used in Canadian football, field lacrosse and basketball.

Definition source: English Wiktionary via Wiktextract

Topics: hobbies, lifestyle, sports

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: touchline

Antonyms: none provided

5

noun

Meaning 5

The area outside the playing field beyond each sideline.

Definition source: English Wiktionary via Wiktextract

Usage: plural-normally

Topics: hobbies, lifestyle, sports

Examples

  • The coach stood on the sidelines and bellowed commands at the team.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

The outside or perimeter of any activity.

Definition source: English Wiktionary via Wiktextract

Usage: figuratively

Examples

  • to relegate to the sidelines
  • She installed the whole fixture while he simply watched from the sidelines.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

noun

Meaning 7

A secondary road, especially a byroad at right angles to a main road.

Definition source: English Wiktionary via Wiktextract

Usage: Canada

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

noun

Meaning 8

A side hustle.

Definition source: English Wiktionary via Wiktextract

Usage: Philippines

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

verb

Meaning 9

To place on the sidelines; to bench or to keep someone out of play.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

Topics: hobbies, lifestyle, sports

Examples

  • The coach sidelined the player until he regained his strength.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

10

verb

Meaning 10

To remove or keep out of circulation or out of the focus.

Definition source: English Wiktionary via Wiktextract

Usage: figuratively, transitive

Examples

  • The illness sidelined him for weeks.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

11

noun

Meaning 11

an auxiliary activity

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: avocation, by-line, hobby, pursuit, spare-time activity

Antonyms: none provided

Broader terms: pastime, interest, pursuit

Narrower terms: speleology, spelaeology

12

noun

Meaning 12

an auxiliary line of merchandise

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: line, product line, line of products, line of merchandise, business line, line of business

13

noun

Meaning 13

a line that marks the side boundary of a playing field

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: out of bounds

Antonyms: none provided

Broader terms: line

Narrower terms: touchline

14

verb

Meaning 14

remove from the center of activity or attention; place into an inferior position

Definition source: Princeton WordNet 3.0

Examples

  • The outspoken cabinet member was sidelined by the President

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: demote, bump, relegate, break, kick downstairs

History

Etymology

From side + line.

Across languages

Translations

44 source translations are retained for this English entry.

  • Finnish: reunaviiva — line at the side
  • Portuguese: linha lateral — line at the side
  • Russian: бокова́я ли́ния (bokovája línija) — line at the side
  • Tagalog: tabing guhit — line at the side
  • Finnish: sivu- — something additional or existing around the margins
  • Finnish: oheis- — something additional or existing around the margins
  • Finnish: sivutoimi — something additional or existing around the margins
  • Finnish: oheistuote — something additional or existing around the margins
  • Hungarian: mellékfoglalkozás — something additional or existing around the margins
  • Hungarian: mellékállás — something additional or existing around the margins
  • Hungarian: másodállás — something additional or existing around the margins
  • Hungarian: mellék- — something additional or existing around the margins
  • Hungarian: másod- — something additional or existing around the margins
  • Hungarian: másodlagos — something additional or existing around the margins
  • Hungarian: mellékes — something additional or existing around the margins
  • Tagalog: hiwatik — something additional or existing around the margins
  • Catalan: línia de banda — (sports) side boundary of a playing field
  • Czech: pomezní čára — (sports) side boundary of a playing field
  • Czech: postranní čára — (sports) side boundary of a playing field
  • Finnish: sivuraja — (sports) side boundary of a playing field
  • Hungarian: partvonal — (sports) side boundary of a playing field
  • Hungarian: oldalvonal — (sports) side boundary of a playing field
  • Irish: taobhlíne — (sports) side boundary of a playing field
  • Māori: paetaha — (sports) side boundary of a playing field
  • Norwegian Bokmål: sidelinje — (sports) side boundary of a playing field
  • Norwegian Nynorsk: sidelinje — (sports) side boundary of a playing field
  • Norwegian Nynorsk: sideline — (sports) side boundary of a playing field
  • Russian: бокова́я ли́ния (bokovája línija) — (sports) side boundary of a playing field
  • Spanish: línea de banda — (sports) side boundary of a playing field
  • Spanish: línea de cal — (sports) side boundary of a playing field
  • Tagalog: tabing guhit — (sports) side boundary of a playing field
  • Finnish: kentän laita — (sports) area beyond sideline
  • Russian: бокова́я ли́ния (bokovája línija) — (sports) area beyond sideline
  • Spanish: banda — (sports) area beyond sideline
  • Finnish: sivu — outside or perimeter of any activity
  • Italian: estromettere — to put out of circulation
  • Māori: whakataha — to put out of circulation
  • Māori: tātāki — to put out of circulation
  • Māori: tāki — to put out of circulation
  • Māori: mōtaha — to put out of circulation
  • Māori: whakakaurapa — to put out of circulation
  • Portuguese: pôr à parte — to put out of circulation
  • Portuguese: marginalizar — to put out of circulation
  • Spanish: dejar de lado — to put out of circulation
Real reading context

sideline in complete knowledge articles