What is the meaning of Р?

A letter of the Cyrillic script, called er.

A letter of the Old Cyrillic script, called ritsi or rtsi.

The forty-first letter of the Abaza alphabet, written in the Cyrillic script.

The thirty-fifth letter of the Abkhaz alphabet, written in the Cyrillic script.

The thirty-sixth letter of the Adyghe alphabet, written in the Cyrillic script.

The twenty-eighth letter of the Aghul alphabet, written in the Cyrillic script.

The twenty-fourth letter of the Alutor alphabet, written in the Cyrillic script.

The fifty-ninth letter of the Archi alphabet, written in the Cyrillic script.

The nineteenth letter of the Buryat alphabet, written in the Cyrillic script.

The twenty-first letter of the Chukchi alphabet, written in the Cyrillic script.

The twenty-fifth letter of the Dargwa alphabet, written in the Cyrillic script.

The twenty-first letter of the Dungan alphabet, written in the Cyrillic script.

The twentieth letter of the Eastern Mari alphabet, written in the Cyrillic script.

The twenty-first letter of the Even alphabet, written in the Cyrillic script.

The nineteenth letter of the Evenki alphabet, written in the Cyrillic script.

The twenty-fourth letter of the Ingush alphabet, written in the Cyrillic script.

The twenty-eighth letter of the Itelmen alphabet, written in the Cyrillic script.

The thirty-fifth letter of the Kabardian alphabet, written in the Cyrillic script.

The twenty-second letter of the Khakas alphabet, written in the Cyrillic script.

The twenty-third letter of the Kumyk alphabet, written in the Cyrillic script.

The twentieth letter of the Kyrgyz alphabet, called эр (er), and written in the Cyrillic script.

The twenty-fourth letter of the Lezgi alphabet, written in the Cyrillic script.

The twenty-sixth letter of the Nivkh alphabet, written in the Cyrillic script.

The twenty-fourth letter of the Northern Mansi alphabet, written in the Cyrillic script.

The twenty-fourth letter of the Orok alphabet, written in the Cyrillic script.

The twenty-first letter of the Southern Altai alphabet, written in the Cyrillic script.

The twenty-fifth letter of the Tabasaran alphabet, written in the Cyrillic script.

The nineteenth letter of the Tundra Nenets alphabet, written in the Cyrillic script.

The twentieth letter of the Western Mari alphabet, written in the Cyrillic script.

The twenty-third letter of the Yakut alphabet, called эр (er), and written in the Cyrillic script.

The twenty-fifth letter of the Avar alphabet, written in the Cyrillic script.

The twenty-second letter of the Azerbaijani alphabet, written in the Cyrillic script.

The twenty-third letter of the Bashkir alphabet, written in the Cyrillic script.

The eighteenth letter of the Belarusian alphabet, written in the Cyrillic script.

The seventeenth letter of the Bulgarian alphabet, called ръ (r), and written in the Cyrillic script.

The twenty-fifth letter of the Chechen alphabet, written in the Cyrillic script.

The twentieth letter of the Chuvash alphabet, written in the Cyrillic script.

The twenty-first letter of the Crimean Tatar alphabet, written in the Cyrillic script.

The twenty-third letter of the Kalmyk alphabet, written in the Cyrillic script.

The twenty-third letter of the Kazakh alphabet, written in the Cyrillic script.

The twenty-first letter of the Macedonian alphabet, written in the Cyrillic script.

The nineteenth letter of the Mongolian alphabet, called эр (er), and written in the Cyrillic script.

A letter of the Old Church Slavonic alphabet, called рьци (rĭci), and written in the Old Cyrillic script.

The twenty-fourth letter of the Ossetian alphabet, written in the Cyrillic script.

The eighteenth letter of the Moldovan alphabet, written in the Cyrillic script.

The eighteenth letter of the Russian alphabet, called эр (er), and written in the Cyrillic script.

The twentieth letter of the Serbo-Croatian alphabet, written in the Cyrillic script.

The twenty-first letter of the Tajik alphabet, written in the Cyrillic script.

The twenty-second letter of the Tatar alphabet, written in the Cyrillic script.

The twentieth letter of the Tuvan alphabet, written in the Cyrillic script.

The twenty-second letter of the Udmurt alphabet, written in the Cyrillic script.

The twenty-first letter of the Ukrainian alphabet, called ер (er), and written in the Cyrillic script.

The eighteenth letter of the Uzbek alphabet, written in the Cyrillic script.

Source: wiktionary.org