"lower third" meaning in English

{
  "forms": [
    {
      "form": "lower thirds",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "lower third (plural lower thirds)",
      "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": "topical",
          "langcode": "en",
          "name": "Television",
          "orig": "en:Television",
          "parents": [
            "Broadcasting",
            "Mass media",
            "Media",
            "Telecommunications",
            "Culture",
            "Communication",
            "Technology",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A graphic overlay placed in the title-safe lower area of the screen."
      ],
      "id": "en-lower_third-en-noun-TLsJeiAr",
      "links": [
        [
          "television",
          "television"
        ],
        [
          "graphic",
          "graphic"
        ],
        [
          "overlay",
          "overlay"
        ],
        [
          "title",
          "title"
        ],
        [
          "-safe",
          "-safe"
        ],
        [
          "screen",
          "screen"
        ]
      ],
      "raw_glosses": [
        "(television) A graphic overlay placed in the title-safe lower area of the screen."
      ],
      "topics": [
        "broadcasting",
        "media",
        "television"
      ],
      "translations": [
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "a graphic overlay",
          "tags": [
            "masculine"
          ],
          "word": "rótulo"
        }
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-ɜː(ɹ)d"
    }
  ],
  "word": "lower third"
}

{
  "forms": [
    {
      "form": "lower thirds",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "lower third (plural lower thirds)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Rhymes:English/ɜː(ɹ)d",
        "Rhymes:English/ɜː(ɹ)d/3 syllables",
        "en:Television"
      ],
      "glosses": [
        "A graphic overlay placed in the title-safe lower area of the screen."
      ],
      "links": [
        [
          "television",
          "television"
        ],
        [
          "graphic",
          "graphic"
        ],
        [
          "overlay",
          "overlay"
        ],
        [
          "title",
          "title"
        ],
        [
          "-safe",
          "-safe"
        ],
        [
          "screen",
          "screen"
        ]
      ],
      "raw_glosses": [
        "(television) A graphic overlay placed in the title-safe lower area of the screen."
      ],
      "topics": [
        "broadcasting",
        "media",
        "television"
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-ɜː(ɹ)d"
    }
  ],
  "translations": [
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "a graphic overlay",
      "tags": [
        "masculine"
      ],
      "word": "rótulo"
    }
  ],
  "word": "lower third"
}