{
  "r":{
    "antonyms":[],
    "definitions":{
      ": a graphic device for reproducing the letter r":[],
      ": a graphic representation of this letter":[],
      ": a speech counterpart of orthographic r":[],
      ": one designated r especially as the 18th in order or class":[],
      ": something shaped like the letter R":[],
      ": the 18th letter of the English alphabet":[],
      "R-value":[],
      "Rankine":[],
      "Reaumur":[],
      "Republican":[],
      "rabbi":[],
      "radial":[],
      "radical":[
        "\u2014 used especially of a monovalent hydrocarbon radical"
      ],
      "radius":[],
      "rain":[],
      "range":[],
      "rare":[],
      "real":[],
      "recipe":[],
      "recto":[],
      "red":[],
      "registered trademark":[
        "\u2014 often enclosed in a circle"
      ],
      "regular":[],
      "repeat":[],
      "rerun":[],
      "resistance":[],
      "right":[],
      "river":[],
      "roentgen":[],
      "rook":[],
      "rough":[],
      "run":[],
      "\u2014 compare g , nc-17 , pg , pg-13":[
        "\u2014 used to certify that a motion picture is of such a nature that admission is restricted to persons over a specified age (such as 17) unless accompanied by a parent or guardian"
      ]
    },
    "examples":[
      "Noun",
      "There are two r's in \u201ctomorrow.\u201d",
      "\u201cRiver\u201d begins and ends with r ."
    ],
    "first_known_use":{
      "before the 12th century, in the meaning defined at sense 1a":"Noun"
    },
    "history_and_etymology":{},
    "pronounciation":[
      "\u02c8\u00e4r"
    ],
    "synonym_discussion":"",
    "synonyms":[],
    "time_of_retrieval":"20220707-202145",
    "type":[
      "abbreviation",
      "certification mark",
      "noun",
      "symbol"
    ]
  }
}