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

    Apr 10, 2024 · Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'index.' Any opinions expressed in the examples do not represent …

  3. INDICES Definition & Meaning - Merriam-Webster

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

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

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

  5. 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 …

  6. INDEX FOSSIL Definition & Meaning - Merriam-Webster

    Sep 19, 2017 · The meaning of INDEX FOSSIL is a fossil usually with a narrow time range and wide spatial distribution that is used in the identification of related geologic formations.

  7. INDEX FINGER Definition & Meaning - Merriam-Webster

    Jan 27, 2026 · The meaning of INDEX FINGER is the finger next to the thumb —called also forefinger.

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

    Jan 29, 2026 · 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 …

  9. How Strong Is Your Vocabulary? - Word Game | Merriam-Webster

    Take our 10-question quiz to find out — and maybe learn some new words along the way.

  10. THERAPEUTIC INDEX Definition & Meaning - Merriam-Webster

    Jan 5, 2026 · The meaning of THERAPEUTIC INDEX is a measure of the relative desirability of a drug for the attaining of a particular medical end that is usually expressed as the ratio of the largest dose …