Boundary

/ˈbaʊndəɹi/ noun

noun ·Common ·High school level

Meaning at a glance

  • Primary sense: The dividing line or location between two areas.
  • Grammar: boundary is listed as noun.
  • Nearest alternatives: edge, limit, abutment, ankle.
  • Useful contrasts: breach, extent, freedom.
  • Usage evidence: The Rhine is the boundary between France and Germany.

How to use "boundary"

  1. Start with the primary definition, then check the part of speech before placing the word in a sentence.
  2. Compare nearby synonyms to make sure "boundary" carries the exact meaning, tone, and strength you need.
  3. 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 "boundary" 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 "boundary" as the right word for your sentence.

If your draft is formal, technical, persuasive, or sensitive, compare "boundary" 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 "boundary" is acting as noun 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 "edge" 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 "boundary", 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. 1
    The dividing line or location between two areas.

    "So this was my future home, I thought![…]Backed by towering hills, the but faintly discernible purple line of the French boundary off to the southwest, a sky of palest Gobelin flecked with fat, fleecy little clouds, it in truth looked a dear little city; the city of one's dreams."

  2. 2
    the greatest possible degree of something wordnet
  3. 3
    The bounds, confines, or limits between immaterial things (such as one’s comfort zone, privacy, or professional sphere and the realm beyond). figuratively, in-plural, often

    "I didn’t mean to push the boundaries by sending my boss a message on Saturday night."

  4. 4
    the line or plane indicating the limit or extent of something wordnet
  5. 5
    An edge or line marking an edge of the playing field.
Show 4 more definitions
  1. 6
    a line determining the limits of an area wordnet
  2. 7
    An event whereby the ball is struck and either touches or passes over a boundary (with or without bouncing), usually resulting in an award of 4 (four) or 6 (six) runs respectively for the batting team.

    "Travis hit a boundary to seal the match on the last ball of the over."

  3. 8
    (of a set) The set of points in the closure of a set S, not belonging to the interior of that set.
  4. 9
    Commission paid by a bus or jeepney driver to a public transportation operator for taking passengers, or the excess collected fares taken as daily wage. Philippines

Example

"The Rhine is the boundary between France and Germany."

Common questions

What does "boundary" mean?

The dividing line or location between two areas.

What is a synonym for "boundary"?

Common synonyms include: edge, limit, abutment, ankle, articulation, balustrade.

How do you use "boundary" in a sentence?

The Rhine is the boundary between France and Germany.

How do you pronounce "boundary"?

Pronounced /ˈbaʊndəɹi/.

Etymology

From bound + -ary, Old French, from Latin.

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