What does "sideline" mean?
A line at the side of something.
Sideline
/ˈsaɪdlaɪn/ noun, verb
noun, verb ·Moderate ·High school level
Meaning at a glance
- Primary sense: A line at the side of something.
- Grammar: sideline is listed as noun, verb.
- Nearest alternatives: adjunct, auxiliary, avocation, avocation.
- Useful contrasts: activate, center field, central role.
- Usage evidence: Mr. Federer is challenging the call on the right sideline. The ball was called out.
How to use "sideline"
- Start with the primary definition, then check the part of speech before placing the word in a sentence.
- Compare nearby synonyms to make sure "sideline" carries the exact meaning, tone, and strength you need.
- Use the example sentence as a context check. If your sentence uses the word differently, confirm that the grammar still fits.
Meaning check
- Does the word fit the sentence's grammar?
- Does it match the intended tone rather than only the dictionary definition?
- Would a simpler synonym be clearer for the reader?
- Is there enough surrounding context to prevent ambiguity?
Source and review context
This entry combines structured lexical data with WordToolSet review checks. Definitions, examples, synonyms, and usage notes may come from different source tables, so the page is designed to show evidence from more than one angle before you rely on "sideline" in a final draft.
If a word has several senses, prefer the sense that matches your sentence's grammar and surrounding context. A correct definition can still be the wrong choice when the sentence needs a different register, emphasis, or level of specificity.
Before you rely on this definition
Read the first definition as a starting point, then check the example, synonyms, and part of speech before treating "sideline" as the right word for your sentence.
If your draft is formal, technical, persuasive, or sensitive, compare "sideline" with a nearby alternative so the final choice matches both meaning and reader expectation.
Compare nearby meanings
- Use synonyms when you need a softer, stronger, simpler, or more specific word.
- Use antonyms to check the boundary of the meaning and avoid accidental contrast.
- Use the example sentence to confirm the word behaves naturally in context.
- Keep the original wording when a replacement adds complexity without improving precision.
Definition decision workflow
1. Identify the role
Check whether "sideline" is acting as noun, verb in your sentence. A definition is only useful when the grammar matches the way the word is being used.
2. Test the nearest option
Compare it with "adjunct" and other nearby choices to see whether the sentence needs a softer, stronger, or more familiar word.
3. Confirm with context
Use the example sentence below as an evidence check, then read your own sentence out loud to catch tone or rhythm problems.
Review note: Definition pages are checked for source coverage, sentence evidence, synonym support, and editorial insight before they are treated as approval-ready pages. If the evidence is too thin, the page remains available to users but is kept out of the approval-facing indexed inventory.
Final meaning check
Before publishing a sentence with "sideline", ask whether the word helps the reader understand the idea faster. A precise word should reduce confusion, not simply make the sentence look more polished.
When the definition, synonym evidence, and example context point in the same direction, the word is usually a safer choice. When they conflict, revise the sentence or choose a clearer alternative.
Definitions
Noun
- 1 A line at the side of something.
"Like most other fishes, the dragonet varies slightly in colour in different individuals, and at different seasons of the year. Mr. Pennant describes the pupils of the eyes to be of a rich sapphirine blue; the irides fine fiery carbuncle; the pectoral fins light brown; the side-line straight; the colours of the fish yellow, blue, and white, making a beautiful appearance when fresh taken."
- 2 an auxiliary activity wordnet
- 3 Something that is additional or extra or that exists around the edges or margins of a main item.
"She started the business as a sideline to her regular work and it ended up becoming the greater source of income."
- 4 an auxiliary line of merchandise wordnet
- 5 A line for hobbling an animal by connecting the fore and the hind feet of the same side.
Show 6 more definitions
- 6 a line that marks the side boundary of a playing field wordnet
- 7 A line defining the side boundary of a playing field. Used in Canadian football, field lacrosse and basketball.
- 8 The area outside the playing field beyond each sideline. plural-normally
"The coach stood on the sidelines and bellowed commands at the team."
- 9 The outside or perimeter of any activity. figuratively
"to relegate to the sidelines"
- 10 A secondary road, especially a byroad at right angles to a main road. Canada
- 11 A side hustle. Philippines
Verb
- 1 To place on the sidelines; to bench or to keep someone out of play. transitive
"The coach sidelined the player until he regained his strength."
- 2 remove from the center of activity or attention; place into an inferior position wordnet
- 3 To remove or keep out of circulation or out of the focus. figuratively, transitive
"The illness sidelined him for weeks."
Example
"Mr. Federer is challenging the call on the right sideline. The ball was called out."
Common questions
What is a synonym for "sideline"?
Common synonyms include: adjunct, auxiliary, avocation, avocation, avocations, bank.
How do you use "sideline" in a sentence?
Mr. Federer is challenging the call on the right sideline. The ball was called out.
How do you pronounce "sideline"?
Pronounced /ˈsaɪdlaɪn/.
Etymology
From side + line.