"block letter" meaning in English

{
  "forms": [
    {
      "form": "block letters",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "block letter (plural block letters)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Finnish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with German translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Indonesian translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Norwegian Bokmål translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Norwegian Nynorsk translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Polish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Portuguese translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Russian translations",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A letter written in clear, unjoined handwriting."
      ],
      "id": "en-block_letter-en-noun-CQLKT07e",
      "related": [
        {
          "word": "block capital"
        }
      ],
      "tags": [
        "plural-normally"
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "letter written in clear, unjoined handwriting",
          "word": "tikkukirjain"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "letter written in clear, unjoined handwriting",
          "tags": [
            "masculine"
          ],
          "word": "Blockbuchstabe"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "letter written in clear, unjoined handwriting",
          "tags": [
            "masculine"
          ],
          "word": "handgeschriebener Großdruckbuchstabe"
        },
        {
          "code": "id",
          "lang": "Indonesian",
          "sense": "letter written in clear, unjoined handwriting",
          "word": "huruf cetak"
        },
        {
          "code": "nb",
          "lang": "Norwegian Bokmål",
          "sense": "letter written in clear, unjoined handwriting",
          "tags": [
            "masculine"
          ],
          "word": "blokkbokstav"
        },
        {
          "code": "nn",
          "lang": "Norwegian Nynorsk",
          "sense": "letter written in clear, unjoined handwriting",
          "tags": [
            "masculine"
          ],
          "word": "blokkbokstav"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "letter written in clear, unjoined handwriting",
          "tags": [
            "feminine"
          ],
          "word": "drukowana litera"
        },
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "letter written in clear, unjoined handwriting",
          "tags": [
            "feminine"
          ],
          "word": "letra de forma"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "propisnája pečátnaja búkva",
          "sense": "letter written in clear, unjoined handwriting",
          "tags": [
            "feminine"
          ],
          "word": "прописна́я печа́тная бу́ква"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "pečátnaja búkva",
          "sense": "letter written in clear, unjoined handwriting",
          "tags": [
            "feminine"
          ],
          "word": "печа́тная бу́ква"
        }
      ]
    }
  ],
  "word": "block letter"
}

{
  "forms": [
    {
      "form": "block letters",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "block letter (plural block letters)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "block capital"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Finnish translations",
        "Terms with German translations",
        "Terms with Indonesian translations",
        "Terms with Norwegian Bokmål translations",
        "Terms with Norwegian Nynorsk translations",
        "Terms with Polish translations",
        "Terms with Portuguese translations",
        "Terms with Russian translations"
      ],
      "glosses": [
        "A letter written in clear, unjoined handwriting."
      ],
      "tags": [
        "plural-normally"
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "letter written in clear, unjoined handwriting",
      "word": "tikkukirjain"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "letter written in clear, unjoined handwriting",
      "tags": [
        "masculine"
      ],
      "word": "Blockbuchstabe"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "letter written in clear, unjoined handwriting",
      "tags": [
        "masculine"
      ],
      "word": "handgeschriebener Großdruckbuchstabe"
    },
    {
      "code": "id",
      "lang": "Indonesian",
      "sense": "letter written in clear, unjoined handwriting",
      "word": "huruf cetak"
    },
    {
      "code": "nb",
      "lang": "Norwegian Bokmål",
      "sense": "letter written in clear, unjoined handwriting",
      "tags": [
        "masculine"
      ],
      "word": "blokkbokstav"
    },
    {
      "code": "nn",
      "lang": "Norwegian Nynorsk",
      "sense": "letter written in clear, unjoined handwriting",
      "tags": [
        "masculine"
      ],
      "word": "blokkbokstav"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "letter written in clear, unjoined handwriting",
      "tags": [
        "feminine"
      ],
      "word": "drukowana litera"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "letter written in clear, unjoined handwriting",
      "tags": [
        "feminine"
      ],
      "word": "letra de forma"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "propisnája pečátnaja búkva",
      "sense": "letter written in clear, unjoined handwriting",
      "tags": [
        "feminine"
      ],
      "word": "прописна́я печа́тная бу́ква"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "pečátnaja búkva",
      "sense": "letter written in clear, unjoined handwriting",
      "tags": [
        "feminine"
      ],
      "word": "печа́тная бу́ква"
    }
  ],
  "word": "block letter"
}