"on special" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prepositional phrase"
      },
      "expansion": "on special",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prep_phrase",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Australian English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2022 April 8, Jo Abi, 9Honey",
          "text": "Short grain rice is on special this week.",
          "type": "quotation"
        },
        {
          "ref": "2017 March 22, hmoody, Whirlpool",
          "text": "If a particular item is on special this week, when can I expect it to go on sale again?",
          "type": "quotation"
        },
        {
          "ref": "2022, Garry Lee, Nugan Estate",
          "text": "This wine is outstanding. I recently ordered 2 cases of this when it was on special.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "For sale at a reduced price."
      ],
      "id": "en-on_special-en-prep_phrase-gbyvVqEf",
      "links": [
        [
          "For sale",
          "for sale"
        ],
        [
          "reduce",
          "reduce"
        ],
        [
          "price",
          "price"
        ]
      ],
      "raw_glosses": [
        "(Australia) For sale at a reduced price."
      ],
      "synonyms": [
        {
          "tags": [
            "Australia",
            "US"
          ],
          "word": "on sale"
        },
        {
          "tags": [
            "Britain"
          ],
          "word": "on offer"
        }
      ],
      "tags": [
        "Australia"
      ]
    }
  ],
  "word": "on special"
}

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prepositional phrase"
      },
      "expansion": "on special",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prep_phrase",
  "senses": [
    {
      "categories": [
        "Australian English",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English prepositional phrases",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2022 April 8, Jo Abi, 9Honey",
          "text": "Short grain rice is on special this week.",
          "type": "quotation"
        },
        {
          "ref": "2017 March 22, hmoody, Whirlpool",
          "text": "If a particular item is on special this week, when can I expect it to go on sale again?",
          "type": "quotation"
        },
        {
          "ref": "2022, Garry Lee, Nugan Estate",
          "text": "This wine is outstanding. I recently ordered 2 cases of this when it was on special.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "For sale at a reduced price."
      ],
      "links": [
        [
          "For sale",
          "for sale"
        ],
        [
          "reduce",
          "reduce"
        ],
        [
          "price",
          "price"
        ]
      ],
      "raw_glosses": [
        "(Australia) For sale at a reduced price."
      ],
      "tags": [
        "Australia"
      ]
    }
  ],
  "synonyms": [
    {
      "tags": [
        "Australia",
        "US"
      ],
      "word": "on sale"
    },
    {
      "tags": [
        "Britain"
      ],
      "word": "on offer"
    }
  ],
  "word": "on special"
}