1

r

play
noun, often capitalized often attributive \ˈär\

Definition of r

plural

r's

or

rs

play \ˈärz\
  1. 1 a :  the 18th letter of the English alphabet b :  a graphic representation of this letter c :  a speech counterpart of orthographic r

  2. 2 :  a graphic device for reproducing the letter r

  3. 3 :  one designated r especially as the 18th in order or class

  4. 4 :  something shaped like the letter R

Examples of r in a sentence

  1. There are two r's in tomorrow.

  2. River begins and ends with r.

Before 12th Century

First Known Use of r

before 12th century

Other Alphabet Terms


2

r

abbreviation

Definition of r

  1. 1 radius

  2. 2 rain

  3. 3 range

  4. 4 rare

  5. 5 real

  6. 6 recto

  7. 7 red

  8. 8 repeat

  9. 9 rerun

  10. 10 resistance

  11. 11 right

  12. 12 roentgen

  13. 13 rook

  14. 14 rough

  15. 15 run


1

R

abbreviation

Definition of R

  1. 1 rabbi

  2. 2 radial

  3. 3 radical —used especially of a monovalent hydrocarbon radical

  4. 4 Rankine

  5. 5 Reaumur

  6. 6 recipe

  7. 7 registered trademark —often enclosed in a circle

  8. 8 regular

  9. 9 Republican

  10. 10 river

  11. 11 R-value


2

R

certification mark

Definition of R

  1. —used to certify that a motion picture is of such a nature that admission is restricted to persons over a specified age (as 17) unless accompanied by a parent or guardian — compare g, nc-17, pg, pg-13



R Defined for English Language Learners

1

r

play
noun, often capitalized often attributive \ˈär\

Definition of r for English Language Learners

  • : the 18th letter of the English alphabet


R Defined for Kids

noun , often cap \ˈär\

Definition of r for Students

plural

r's

or

rs

\ˈärz\
  1. :  the 18th letter of the English alphabet


R

abbreviation

Definition of R for Students

  1. regular


Medical Dictionary

r

abbreviation

Medical Definition of r

  1. roentgen


R

abbreviation

Medical Definition of R

  1. 1Reaumur

  2. 2rough—used in bacteriology


R

symbol

Medical Definition of R

  1. chemical group and especially an organic chemical group <thiols have the general formula RSH>


Learn More about r


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