"Cape triangle" meaning in English

{
  "etymology_text": "From its shape and origin.",
  "forms": [
    {
      "form": "Cape triangles",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Cape triangle (plural Cape triangles)",
      "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": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Philately",
          "orig": "en:Philately",
          "parents": [
            "Hobbies",
            "Recreation",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2003, Cape of Good Hope Wine Co.",
          "text": "Some of the Cape Triangles are very rare and expensive, depending on grade and condition."
        }
      ],
      "glosses": [
        "One of several denominations of triangular postage stamps issued by the Cape of Good Hope during the period 1853-1864."
      ],
      "id": "en-Cape_triangle-en-noun-kCGKhlRP",
      "links": [
        [
          "denomination",
          "denomination"
        ],
        [
          "postage stamp",
          "postage stamp"
        ],
        [
          "issue",
          "issue"
        ],
        [
          "Cape of Good Hope",
          "Cape of Good Hope"
        ]
      ],
      "raw_glosses": [
        "(informal) One of several denominations of triangular postage stamps issued by the Cape of Good Hope during the period 1853-1864."
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "word": "Cape triangle"
}

{
  "etymology_text": "From its shape and origin.",
  "forms": [
    {
      "form": "Cape triangles",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Cape triangle (plural Cape triangles)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English informal terms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "en:Philately"
      ],
      "examples": [
        {
          "ref": "2003, Cape of Good Hope Wine Co.",
          "text": "Some of the Cape Triangles are very rare and expensive, depending on grade and condition."
        }
      ],
      "glosses": [
        "One of several denominations of triangular postage stamps issued by the Cape of Good Hope during the period 1853-1864."
      ],
      "links": [
        [
          "denomination",
          "denomination"
        ],
        [
          "postage stamp",
          "postage stamp"
        ],
        [
          "issue",
          "issue"
        ],
        [
          "Cape of Good Hope",
          "Cape of Good Hope"
        ]
      ],
      "raw_glosses": [
        "(informal) One of several denominations of triangular postage stamps issued by the Cape of Good Hope during the period 1853-1864."
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "word": "Cape triangle"
}