"acu" meaning in Irish

{
  "etymology_templates": [
    {
      "args": {
        "1": "ga",
        "2": "sga",
        "3": "occo"
      },
      "expansion": "Old Irish occo",
      "name": "inh"
    }
  ],
  "etymology_text": "From Old Irish occo.",
  "forms": [
    {
      "form": "acusan",
      "tags": [
        "emphatic"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ga",
        "2": "prepositional pronoun",
        "3": "emphatic",
        "4": "acusan",
        "head": ""
      },
      "expansion": "acu (emphatic acusan)",
      "name": "head"
    },
    {
      "args": {
        "1": "acusan"
      },
      "expansion": "acu (emphatic acusan)",
      "name": "ga-prpr"
    }
  ],
  "lang": "Irish",
  "lang_code": "ga",
  "pos": "pron",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Irish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Irish prepositional pronouns",
          "parents": [
            "Prepositional pronouns",
            "Prepositions",
            "Pronoun forms",
            "Lemmas",
            "Non-lemma forms",
            "Pronouns"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "They have a dog. (literally, “A dog is at them.”)",
          "text": "Tá madra acu.",
          "type": "example"
        }
      ],
      "form_of": [
        {
          "word": "ag"
        }
      ],
      "glosses": [
        "third-person plural of ag"
      ],
      "id": "en-acu-ga-pron-5RXc7eID",
      "links": [
        [
          "ag",
          "ag#Irish"
        ]
      ],
      "synonyms": [
        {
          "english": "superseded",
          "word": "aca"
        }
      ],
      "tags": [
        "form-of",
        "plural",
        "third-person"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈakə/"
    },
    {
      "ipa": "/ˈaku/"
    },
    {
      "ipa": "/əˈku/",
      "tags": [
        "Munster"
      ]
    },
    {
      "ipa": "/ˈɑkəbˠ/",
      "tags": [
        "Aran"
      ]
    },
    {
      "ipa": "/ˈakəbˠ/",
      "tags": [
        "Cois-Fharraige"
      ]
    },
    {
      "ipa": "/ˈapˠək/",
      "tags": [
        "Cois-Fharraige"
      ]
    }
  ],
  "word": "acu"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "ga",
        "2": "sga",
        "3": "occo"
      },
      "expansion": "Old Irish occo",
      "name": "inh"
    }
  ],
  "etymology_text": "From Old Irish occo.",
  "forms": [
    {
      "form": "acusan",
      "tags": [
        "emphatic"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ga",
        "2": "prepositional pronoun",
        "3": "emphatic",
        "4": "acusan",
        "head": ""
      },
      "expansion": "acu (emphatic acusan)",
      "name": "head"
    },
    {
      "args": {
        "1": "acusan"
      },
      "expansion": "acu (emphatic acusan)",
      "name": "ga-prpr"
    }
  ],
  "lang": "Irish",
  "lang_code": "ga",
  "pos": "pron",
  "senses": [
    {
      "categories": [
        "Irish entries with incorrect language header",
        "Irish non-lemma forms",
        "Irish prepositional pronouns",
        "Irish terms derived from Old Irish",
        "Irish terms inherited from Old Irish",
        "Irish terms with IPA pronunciation",
        "Irish terms with usage examples"
      ],
      "examples": [
        {
          "english": "They have a dog. (literally, “A dog is at them.”)",
          "text": "Tá madra acu.",
          "type": "example"
        }
      ],
      "form_of": [
        {
          "word": "ag"
        }
      ],
      "glosses": [
        "third-person plural of ag"
      ],
      "links": [
        [
          "ag",
          "ag#Irish"
        ]
      ],
      "tags": [
        "form-of",
        "plural",
        "third-person"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈakə/"
    },
    {
      "ipa": "/ˈaku/"
    },
    {
      "ipa": "/əˈku/",
      "tags": [
        "Munster"
      ]
    },
    {
      "ipa": "/ˈɑkəbˠ/",
      "tags": [
        "Aran"
      ]
    },
    {
      "ipa": "/ˈakəbˠ/",
      "tags": [
        "Cois-Fharraige"
      ]
    },
    {
      "ipa": "/ˈapˠək/",
      "tags": [
        "Cois-Fharraige"
      ]
    }
  ],
  "synonyms": [
    {
      "english": "superseded",
      "word": "aca"
    }
  ],
  "word": "acu"
}