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  1. INDEX Definition & Meaning - Merriam-Webster

    The meaning of INDEX is a list (as of bibliographical information or citations to a body of literature) arranged usually in alphabetical order of some specified datum (such as author, subject, or keyword).

  2. INDEX Synonyms: 30 Similar and Opposite Words - Merriam-Webster

    Dec 5, 2016 · Synonyms for INDEX: indicator, needle, gauge, hand, pointer, dial, face, list; Antonyms of INDEX: delete

  3. INDICES Definition & Meaning - Merriam-Webster

    3 days ago · The meaning of INDICES is plural of index.

  4. HEAT INDEX Definition & Meaning - Merriam-Webster

    The heat index is defined as a function of temperature and relative humidity. The combination of the two results in an apparent temperature that gives an idea of what the hot and humid air feels like to the …

  5. INDEX CASE Definition & Meaning - Merriam-Webster

    The meaning of INDEX CASE is the first documented case of an infectious disease or genetically transmitted condition or mutation in a population, region, or family.

  6. Examples of 'INDEX' in a Sentence | Merriam-Webster

    Apr 10, 2024 · The 1940 census records were released a decade ago, but the federal government didn't transcribe and index the names. — Bill Bowden, Arkansas Online, 10 Apr. 2022

  7. CONSUMER PRICE INDEX Definition & Meaning - Merriam-Webster

    Nov 28, 2025 · The meaning of CONSUMER PRICE INDEX is an index measuring the change in the cost of typical wage-earner purchases of goods and services expressed as a percentage of the cost …

  8. INDEX PATIENT Definition & Meaning - Merriam-Webster

    Oct 3, 2024 · The meaning of INDEX PATIENT is an individual affected with the first known case of an infectious disease or genetically transmitted condition or mutation in a population, region, or family : …

  9. INDEX NUMBER Definition & Meaning - Merriam-Webster

    The meaning of INDEX NUMBER is a number used to indicate change in magnitude (as of cost or price) as compared with the magnitude at some specified time usually taken as 100.

  10. INDEX FINGER Definition & Meaning - Merriam-Webster

    Nov 17, 2025 · The meaning of INDEX FINGER is the finger next to the thumb —called also forefinger.