There are 3 main definitions of r in English:

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r1

Syllabification: r

abbreviation

1.1(Giving position or direction) right: l to r: Evan, Nick, and David
1.2 Law Rule: under r 7.4 (6) the court may hear an application immediately

symbol

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1Radius: 2πr

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There are 3 main definitions of r in English:

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R2

Syllabification: R
(also r)

noun (plural Rs or R's)

1The eighteenth letter of the alphabet.
1.1Denoting the next after Q in a set of items, categories, etc.

Phrases

the R months

1
The months with R in their names (September to April), considered to be the season for eating oysters.

the three Rs

2
Reading, writing, and arithmetic, regarded as the fundamentals of learning.
Example sentences
  • An annual poll of headteachers shows that increasing numbers of them think the policies being used to improve pupils' grasp of the three Rs in primary schools are working.
  • Perhaps society would be better off if its schools stuck to the three Rs and did a solid job in domains where they enjoy both competence and wide public support.
  • Researchers identified a steady rise in time spent on the three Rs by juniors in England over the six years to 2002.

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There are 3 main definitions of r in English:

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R3

Syllabification: R

abbreviation

1Rand: a farm worth nearly R1,3-million
1.1Réaumur: 198.6 °R
1.2Regina or Rex: Elizabeth R
1.3 (also ®) Registered as a trademark.
1.4(In the US) Republican: congressman Henry Hyde (R-Illinois)
1.5North American Restricted, a rating in the Voluntary Movie Rating System that children under 17 require an accompanying parent or adult guardian for admission.
1.6(On a gearshift) reverse.
1.7 (R.) River (chiefly on maps): R. Cherwell
1.8Roentgen(s).
1.9Rook (in recording moves in chess): 21.Rh4

symbol

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1 Chemistry An unspecified alkyl or other organic radical or group.
[abbreviation of radical]
1.1Electrical resistance.
1.2 Chemistry The gas constant.

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