Word.ws English Dictionary

real numbers

real numbers is the plural of real number.

Meaning of real number

Noun

real number (plural real numbers)

  1. The limit of a convergent sequence of rational numbers, whether the limit is a rational number such as 2, -5, or 2/7 or whether the limit is an irrational number such as the square root of two or the circumference of the circle whose radius is one.
    • Every integer is a real number, but not vice versa.
  2. A floating-point number.
    • Even if you pass sqrt an integer, it returns a real number.

Noun

real numbers pl (plural only)

  1. (plural, plural-only) The smallest set containing all limits of convergent sequences of rational numbers.
    Synonyms:
    ℝ

Synonyms of real numbers

  • ℝ

Words formed from real numbers

Questions about real numbers

What does real numbers mean?
Real numbers means the smallest set containing all limits of convergent sequences of rational numbers.
What is real numbers the plural of?
Real numbers is the plural of real number.
What part of speech is real numbers?
Real numbers is a noun.

Words near real numbers in the dictionary

  1. real number
  2. real number line
  3. real number lines
  4. real number system
  5. real number systems
  6. real numbers
  7. real one
  8. real ones
  9. real part
  10. real parts
  11. real person fiction

Source and license

Adapted from Wiktionary: real numbers (page history and authors); real number (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “real numbers.” Word.ws, https://word.ws/real_numbers. Based on Wiktionary, CC BY-SA 4.0.