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  1. A number of Definition & Meaning - Merriam-Webster

  2. What are “A number of” and “The number of”? - Prep Edu

  3. A Number of: Definition, Meaning, and Origin - US Dictionary

  4. What’s the Difference between “a Number of” and “the Number

  5. A NUMBER OF definition and meaning | Collins English Dictionary

  6. Amount of, number of or quantity of ? - Cambridge Grammar

  7. The Differences between “a number of” and “the number of”

  8. 'a number of' - Complete English Word Reference - Collins Online …

  9. Confused Words: A Number Of vs. The Number Of

  10. Numbers of or Number Of? Which Is Correct? - Two Minute English