The meaning of BASELINE is a line serving as a basis; especially : one of known measure or position used (as in surveying or navigation) to calculate or locate something.

Being based on or depending on something (Definition of baseline from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

In topography, a surveyed line established with more than usual care, to which surveys are referred for coordination and correlation.

Definition of baseline noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

For most retirees, researchers often recommend combining these approaches: using immediate or deferred-income annuities to secure a baseline of guaranteed income, supplemented by market …

A baseline is a value or starting point on a scale with which other values can be compared.

baseline meaning, definition, what is baseline: a standard measurement or fact against w...: Learn more.

Dec 14, 2025 · baseline (plural baselines) A line that is a base for measurement or for construction.

A baseline is an imaginary starting point or basis of comparison for something. To test how a class's performance improves over time, a researcher might begin with a baseline showing their current …

There are eight meanings listed in OED's entry for the noun baseline, one of which is labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.