"一直線" meaning in 日本語

{
  "categories": [
    {
      "kind": "other",
      "name": "日本語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日本語 名詞",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "いっちょくせん"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "名詞",
  "related": [
    {
      "word": "横一線"
    },
    {
      "word": "一本道"
    }
  ],
  "senses": [
    {
      "glosses": [
        "一本の直線。"
      ],
      "id": "ja-一直線-ja-noun-OCWd6cFx"
    },
    {
      "examples": [
        {
          "text": "一直線に伸びた道。"
        },
        {
          "text": "一直線に並ぶ。"
        }
      ],
      "glosses": [
        "曲がっていないさま。まっすぐ。"
      ],
      "id": "ja-一直線-ja-noun-DxojjeeI"
    },
    {
      "examples": [
        {
          "text": "やると決めたら一直線だ。"
        }
      ],
      "glosses": [
        "脇目もふらずに取り組むさま。"
      ],
      "id": "ja-一直線-ja-noun-itsWhVjp"
    },
    {
      "examples": [
        {
          "text": "そこができたらあとは一直線に解ける問題だ。"
        }
      ],
      "glosses": [
        "複雑でなく簡素なさま。"
      ],
      "id": "ja-一直線-ja-noun-ZSOeX65U"
    }
  ],
  "word": "一直線"
}

{
  "categories": [
    "日本語",
    "日本語 名詞"
  ],
  "forms": [
    {
      "form": "いっちょくせん"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "名詞",
  "related": [
    {
      "word": "横一線"
    },
    {
      "word": "一本道"
    }
  ],
  "senses": [
    {
      "glosses": [
        "一本の直線。"
      ]
    },
    {
      "examples": [
        {
          "text": "一直線に伸びた道。"
        },
        {
          "text": "一直線に並ぶ。"
        }
      ],
      "glosses": [
        "曲がっていないさま。まっすぐ。"
      ]
    },
    {
      "examples": [
        {
          "text": "やると決めたら一直線だ。"
        }
      ],
      "glosses": [
        "脇目もふらずに取り組むさま。"
      ]
    },
    {
      "examples": [
        {
          "text": "そこができたらあとは一直線に解ける問題だ。"
        }
      ],
      "glosses": [
        "複雑でなく簡素なさま。"
      ]
    }
  ],
  "word": "一直線"
}