"直ぐな文字" meaning in 古典日本語

{
  "categories": [
    {
      "kind": "other",
      "name": "古典日本語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "古典日本語_名詞",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "毛筆で書いた字形が真っ直ぐなことから。"
  ],
  "forms": [
    {
      "form": "すぐなもじ"
    }
  ],
  "lang": "古典日本語",
  "lang_code": "ojp",
  "pos": "noun",
  "pos_title": "名詞",
  "senses": [
    {
      "examples": [
        {
          "ref": "（吉田兼好徒然草62）",
          "text": "ふたつ文字牛の角文字直ぐな文字歪み文字とぞ君は覚ゆる"
        }
      ],
      "glosses": [
        "ひらがなの「し」。"
      ],
      "id": "ja-直ぐな文字-ojp-noun-2L~gQZE0"
    }
  ],
  "word": "直ぐな文字"
}

{
  "categories": [
    "古典日本語",
    "古典日本語_名詞"
  ],
  "etymology_texts": [
    "毛筆で書いた字形が真っ直ぐなことから。"
  ],
  "forms": [
    {
      "form": "すぐなもじ"
    }
  ],
  "lang": "古典日本語",
  "lang_code": "ojp",
  "pos": "noun",
  "pos_title": "名詞",
  "senses": [
    {
      "examples": [
        {
          "ref": "（吉田兼好徒然草62）",
          "text": "ふたつ文字牛の角文字直ぐな文字歪み文字とぞ君は覚ゆる"
        }
      ],
      "glosses": [
        "ひらがなの「し」。"
      ]
    }
  ],
  "word": "直ぐな文字"
}