Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “R, r”

R, r

noun uk   /ɑːr/ us    /ɑːr/ (plural Rs, R's or r's)

R, r noun (LETTER)

[C or U] the 18th letter of the English alphabet

R, r noun (RIVER)

written abbreviation for river, used in writing before or after the name of a river: R Thames

R, r noun (DIRECTION)

written abbreviation for right noun

R, r noun (ROYAL PERSON)

abbreviation for Rex (= king) or Regina (= queen), used after the name of a king or queen: Elizabeth R

R, r

adjective uk   /ɑːr/ us    /ɑːr/

R, r adjective (ROYAL)

written abbreviation for royal adjective, used in the names of organizations: He's an RAF officer.

R, r adjective (DIRECTION)

written abbreviation for right adjective: R eye: 3.20/L eye: 3.25

R, r adjective (FILM)

[C or U] US abbreviation for restricted: used to refer to a film that people under 17 years of age can see only if a parent or guardian is with them

R, r

adverb uk   /ɑːr/ us    /ɑːr/
written abbreviation for right adjective
(Definition of R, r from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of R, r?
Add Cambridge dictionaries to your browser to your website

Definitions of “R, r” in other dictionaries

Word of the Day

see the light of day

When something sees the light of day, it appears for the first time.

Word of the Day

Highly delighted, bitterly disappointed, ridiculously cheap: adverbs for emphasis.

by Liz Walter,
October 22, 2014
We often make adjectives stronger by putting an adverb in front of them. The most common ones are very and, for a stronger meaning, extremely: He was very pleased. The ship is extremely large. However, we don’t use very or extremely for adjectives that already have a strong meaning, for example fantastic,

Read More 

life tracking noun

October 20, 2014
the use of one or more devices or apps to monitor health, exercise, how time is spent, etc.

Read More