Ｒ

noun

R; r

The letter R/r itself, used in abbreviations, symbols, or as a character.

• この記き号ごうはＲと書かいてアールと読よむ。

  This symbol is written as R and read as 'āru'.

noun

radius

Mathematical term for radius; often written as lowercase r in formulas.

• 半はん径けいはｒで表あらわすことが多おおい。

  The radius is often represented by r.

noun

curve; rounding

Refers to a curved shape or rounded corner; commonly written in kana as アール.

• このテーブルの角かどはアールがついている。

  The corners of this table are rounded.

prefix

nth year of Reiwa

Abbreviation used in dates, e.g., R3 for Reiwa 3 (2021).

See also: 令和

• 令れい和わ3年ねんはＲ3と略りゃくされることがある。

  Reiwa 3 is sometimes abbreviated as R3.

noun

refrigerator

Only when written Ｒ

Used on floor plans to indicate a refrigerator; restricted to the fullwidth capital Ｒ.

See also: 冷蔵庫

• 間ま取どり図ずのＲは冷れい蔵ぞう庫この設せっ置ち場ば所しょを示しめす。

  On the floor plan, R indicates the refrigerator location.