r

The eighteenth letter of the English alphabet and the fourteenth consonant, representing the voiced alveolar or retroflex approximant sound /r/. As a grapheme, 'R' is a rhotic consonant whose pronunciation varies significantly among English dialects; it is fully pronounced in rhotic accents like General American but often dropped or modified after vowels in non-rhotic accents like British Received Pronunciation. It functions as an abbreviation for radius, a designation for restricted movie audiences, a trademark symbol, and the eighteenth item in a sequence.

• 🇩🇪Der 18. Buchstabe des englischen Alphabets, ein Konsonant. Er steht für den Laut /r/, dessen Aussprache je nach Dialekt variiert, und wird als Abkürzung für Radius, für Altersfreigaben im Film, als Warenzeichensymbol (®) sowie als 18. Element in einer Reihenfolge verwendet.

1. The eighteenth letter of the English alphabet A1 formal

   The uppercase or lowercase character (R, r) that constitutes the eighteenth symbol in the Latin-based English alphabet, classified as a liquid consonant. It represents a rhotic sound, often a postalveolar approximant in American English, but tapped, trilled, or vocalized in other dialects. It is sometimes called the 'dog's letter' because its trilled pronunciation resembles a growl.

   • The word 'rain' begins with the letter R.
   • In British English, the R at the end of 'car' is often not pronounced.
   • She rolled her Rs in a strong Scottish accent.
   • The uppercase R is formed with a vertical line, a loop, and a diagonal leg.
   • The letter R is sometimes called the 'dog's letter'.

   🇩🇪Achtzehnter Buchstabe des englischen Alphabets

2. The symbol for radius in geometry B1 formal scientific

   The lowercase letter r used as the standard mathematical symbol for the radius of a circle or sphere. The radius is the distance from the center to any point on the circumference or surface. It appears in all fundamental geometric formulas, including C = 2πr for circumference and A = πr² for area.

   • The circle had a radius r of 5 cm.
   • Calculate the area using the formula A = πr².
   • Doubling the radius r quadruples the area of a circle.
   • The volume of the sphere was calculated with r = 3 meters.
   • The explosion created a blast radius r of over a mile.

   🇩🇪Radius (Geometrie)

3. A motion picture rating for restricted audiences B1 formal american art

   The letter R used by the Motion Picture Association of America to indicate that a film is restricted to viewers under 17 who are not accompanied by a parent or adult guardian. This rating signifies content containing adult material such as strong language, intense violence, drug use, or nudity that is considered inappropriate for children.

   • The movie was rated R for strong language and violence.
   • They were turned away at the cinema because the film was R-rated.
   • Many parents won't let their teenagers see R movies.
   • The director had to cut some scenes to avoid an R rating.
   • An R rating means anyone under 17 needs a parent or guardian.

   🇩🇪Altersfreigabe R (unter 17 Jahren nur mit Eltern)

4. The registered trademark symbol B2 formal legal

   The circled uppercase letter R (®) used as a typographic symbol to indicate that a word, phrase, logo, or symbol is a registered trademark with a national or international trademark office. It provides legal notice that the mark is federally protected and unauthorized use is prohibited. It differs from the smaller superscript TM (™), which denotes an unregistered trademark.

   • The brand name had the ® symbol next to it on the packaging.
   • Coca-Cola® is one of the most recognized trademarks in the world.
   • The lawyer advised them to put the ® on all their products.
   • The ® symbol means the logo cannot be copied legally.
   • Once registered, you can use the ® instead of the ™ symbol.

   🇩🇪Zeichen der eingetragenen Marke

5. The eighteenth item in a sequence A2 formal

   A designation used to mark the eighteenth position, item, or category within a structured sequence, directly following Q. It is used in outlines, grading systems, multiple-choice options, seating charts, and classification systems. The letter R is also a grade indicating a repeated course on many university transcripts.

   • Our seats are in Row R, which is near the back of the theater.
   • Please refer to Section R for the legal disclosures.
   • The answer to question 18 was R on the exam key.
   • My transcript shows an R next to that biology course because I retook it.
   • Vitamin R is an informal term sometimes used for methylphenidate.

   🇩🇪Achtzehnter in einer Reihenfolge