"junior infant" meaning in English

{
  "forms": [
    {
      "form": "junior infants",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "junior infant (plural junior infants)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Irish English",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A child in the first year of primary school."
      ],
      "id": "en-junior_infant-en-noun-sDTgL9H-",
      "links": [
        [
          "primary school",
          "primary school"
        ]
      ],
      "raw_glosses": [
        "(Ireland) A child in the first year of primary school."
      ],
      "related": [
        {
          "word": "senior infant"
        }
      ],
      "tags": [
        "Ireland"
      ]
    }
  ],
  "word": "junior infant"
}

{
  "forms": [
    {
      "form": "junior infants",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "junior infant (plural junior infants)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "senior infant"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Irish English"
      ],
      "glosses": [
        "A child in the first year of primary school."
      ],
      "links": [
        [
          "primary school",
          "primary school"
        ]
      ],
      "raw_glosses": [
        "(Ireland) A child in the first year of primary school."
      ],
      "tags": [
        "Ireland"
      ]
    }
  ],
  "word": "junior infant"
}