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Wiktionary The Free Dictionary

baseline

From Wiktionary, the free dictionary

English

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The baseline (red) in typography (3)
The baseline of a tennis court (4)

Etymology

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From base +‎ line .

Pronunciation

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Noun

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baseline (plural baselines )

  1. A line that is a base for measurement or for construction.
    A laser level generates a convenient baseline for interior work.
  2. A datum used as the basis for calculation or for comparison.
    We used the last doctor visit to provide baselines for vital statistics.
  3. (typography ) A line used as the basis for the alignment of glyphs.
    Coordinate terms: beardline , midline , capline , topline
    Several characters typically have descenders below the lower baseline.
  4. (tennis ) The line at the farthest ends of the court indicating the boundary of the area of play.
    The umpire missed the call. The ball hit the baseline.
  5. (engineering ) A configuration of software, hardware, or a process that is established and documented as a point of reference.
    The baseline configuration includes unsupported components.
  6. (medicine ) An initial measurement or observation used as a reference point to compare future changes.

Hypernyms

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Derived terms

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Translations

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line that is a base for measurement or for construction
datum used as the basis for calculation or for comparison
typography: line used as the basis for the alignment of glyphs
tennis: chalk line at the farthest ends of the court
engineering: something established and documented as a point of reference

Verb

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baseline (third-person singular simple present baselines , present participle baselining , simple past and past participle baselined )

  1. (engineering , computing , transitive ) To provide a baseline for measurement.
    • 1993, M.M. Mitchell et al., "Residual Feed Cracking Catalysts", in Magee & Mitchell, editors, Fluid Catalytic Cracking‎[1] , →ISBN, page 320:
      Finally, the test was baselined by evaluating the best and poorest catalysts of their respective types by this protocol.
    • 2025 October 14 (last accessed), "Chapter 1. Questions and Answers on Lojban", in lojban.org‎[2] :
      To ensure Lojban remains stable while people learn it, the language definition is being closely controlled; the grammar and core vocabulary have already been baselined (frozen) for several years.
  2. (tennis , intransitive ) To play from the baseline.
    • 2002, Susan Orlean, The Bullfighter Checks Her Makeup‎[3] , →ISBN, page 260:
      By the time Maggie, who is eight years younger than Manuela, started playing, baselining was no longer enough to win points, so she learned to move around the court more ...

Further reading

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Anagrams

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