What is the meaning of R?

The eighteenth letter of the basic modern Latin alphabet.

Abbreviation of ronto-.

radius

(a) an alveolar trill.

used in several romanization systems of non-Latin scripts to represent various rhotic sounds:

1. Romanization of the Hebrew ר (“reish”, “resh”, “rēš”) in the Common Israeli, Hebrew Academy (1953 and 2006), and ISO 259 transliteration schemes
2. Romanization of the Hebrew רּ (“reish”, “resh”, “rēš ḥāzāq”) in the Common Israeli transliteration scheme

Romanization of the Hebrew ר (“reish”, “resh”, “rēš”) in the Common Israeli, Hebrew Academy (1953 and 2006), and ISO 259 transliteration schemes

Romanization of the Hebrew רּ (“reish”, “resh”, “rēš ḥāzāq”) in the Common Israeli transliteration scheme

of a tactic diad, having structural units in opposition.

relative. E.g. vr or v_r for relative velocity.

The eighteenth letter of the English alphabet, called ar and written in the Latin script.

Abbreviation of are.

Abbreviation of our.

The twenty-fourth letter of the Azerbaijani alphabet, written in the Latin script.

The nineteenth letter of the Basque alphabet, called erre and written in the Latin script.

A letter of the Mazahua alphabet.

mouth (of humans or animals)

speaker, mouthpiece

utterance, statement

especially, ritual utterance, spell

language, manner of speech

opening, hole

bodily orifice, opening of the human body in general, including eyes, ears, nostrils, the vulva, and open wounds

entrance to a building or other enclosed structure, doorway

entrance to a land or place in general

mouth of a river

water’s edge, waterline

place or thing seen as an opening from one point to another, passage, thoroughfare

a measure of volume equivalent to ⁄₃₂ of a hnw or ⁄₃₂₀ of a ḥqꜣt (about 15 millilitres); mouthful

part, piece, fraction

used as a numerator of 1 in fractions, literally “piece of (the denominator)”.

regarding, with respect to, concerning, according to

in order to, for (the purpose of)

forms the periphrastic prospective of a verb

to, towards

headed for, destined for, bound for

at, in, on

against, in opposition to

from, apart from (ablative)

than, by comparison to

introduces the protasis of a conditional sentence; if, when, as

until

so, regarding (that, you, me, etc.), as for (that, you, me, etc.)

The twentieth letter of the Kankanaey alphabet, called ar and written in the Latin script.

The twenty-ninth letter of the Livonian alphabet, written in the Latin script.

Hanyu Pinyin reading of 兒／儿

The eighteenth letter of the Norwegian alphabet, written in the Latin script.

The twentieth letter of the Nupe alphabet, written in the Latin script.

The twenty-seventh letter of the Skolt Sami alphabet, written in the Latin script.

The eighteenth letter of the Dutch alphabet, written in the Latin script.

The twenty-first letter of the Esperanto alphabet, called ro and written in the Latin script.

The eighteenth letter of the Estonian alphabet, called err and written in the Latin script.

The twentieth letter of the Faroese alphabet, written in the Latin script.

The eighteenth letter of the Finnish alphabet, called är or er and written in the Latin script.

The eighteenth letter of the French alphabet, written in the Latin script.

A letter of the Fula alphabet, written in the Latin script.

Romanization of 𐍂

The twenty-ninth letter of the Hungarian alphabet, called err and written in the Latin script.

The twenty-first letter of the Icelandic alphabet, written in the Latin script.

The eighteenth letter of the Ido alphabet, written in the Latin script.

The sixteenth letter of the Italian alphabet, called erre and written in the Latin script.

The twenty-fifth letter of the Kashubian alphabet, written in the Latin script.

A letter in the Latin alphabet, representing the sound /r/

The twenty-fifth letter of the Latvian alphabet, called er and written in the Latin script.

The eighteenth letter of the Malay alphabet, written in the Latin script.

The twenty-second letter of the Maltese alphabet, written in the Latin script.

A letter of the North Frisian alphabet, written in the Latin script.

The twenty-third letter of the Polish alphabet, called er and written in the Latin script.

The eighteenth letter of the Portuguese alphabet, written in the Latin script.

The twenty-second letter of the Romani alphabet, written in the Latin script.

The twenty-third letter of the Romani alphabet, written in the Latin script.

The twenty-first letter of the Romanian alphabet, called er, re, or rî and written in the Latin script.

The fifteenth letter of the Scottish Gaelic alphabet, written in the Latin script. It is preceded by p and followed by s. Its traditional name is ruis (“elder”).

The 23rd letter of the Serbo-Croatian Latin alphabet (gajica), preceded by p and followed by s.

The twenty-fifth letter of the Silesian alphabet, written in the Latin script.

The nineteenth letter of the Spanish alphabet, written in the Latin script.

The eighteenth letter of the Swedish alphabet, written in the Latin script.

The twentieth letter of the Tagalog alphabet (the Filipino alphabet), called ar and written in the Latin script.

The fifteenth letter of the Tagalog alphabet (the Abakada alphabet), called ra and written in the Latin script.

The twenty-first letter of the Tagalog alphabet (the Abecedario), called ere and written in the Latin script.

The twenty-first letter of the Turkish alphabet, called re and written in the Latin script.

The twenty-first letter of the Turkmen alphabet, called er and written in the Latin script.

The twenty-third letter of the Welsh alphabet, called er and written in the Latin script. It is preceded by ph and followed by rh.

The nineteenth letter of the Yoruba alphabet, called rí and written in the Latin script.

The eighteenth letter of the Zulu alphabet, written in the Latin script.

Source: wiktionary.org