"guka" meaning in Kikuyu

{
  "head_templates": [
    {
      "args": {
        "1": "1"
      },
      "expansion": "guka class 1",
      "name": "ki-noun"
    }
  ],
  "lang": "Kikuyu",
  "lang_code": "ki",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Kikuyu entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ki",
          "name": "Family",
          "orig": "ki:Family",
          "parents": [
            "People",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "my grandfather"
      ],
      "id": "en-guka-ki-noun-fshrj-HQ",
      "links": [
        [
          "grandfather",
          "grandfather"
        ]
      ],
      "related": [
        {
          "sense": "thy",
          "word": "gukaguo"
        },
        {
          "sense": "his/her",
          "word": "gukawe"
        }
      ],
      "synonyms": [
        {
          "word": "guuka"
        }
      ],
      "tags": [
        "class-1"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɣùːkǎ(ꜜ)/"
    }
  ],
  "word": "guka"
}

{
  "head_templates": [
    {
      "args": {
        "1": "1"
      },
      "expansion": "guka class 1",
      "name": "ki-noun"
    }
  ],
  "lang": "Kikuyu",
  "lang_code": "ki",
  "pos": "noun",
  "related": [
    {
      "sense": "thy",
      "word": "gukaguo"
    },
    {
      "sense": "his/her",
      "word": "gukawe"
    }
  ],
  "senses": [
    {
      "categories": [
        "Kikuyu class 1 nouns",
        "Kikuyu entries with incorrect language header",
        "Kikuyu lemmas",
        "Kikuyu nouns",
        "Pages with 2 entries",
        "Pages with entries",
        "ki:Family"
      ],
      "glosses": [
        "my grandfather"
      ],
      "links": [
        [
          "grandfather",
          "grandfather"
        ]
      ],
      "tags": [
        "class-1"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɣùːkǎ(ꜜ)/"
    }
  ],
  "synonyms": [
    {
      "word": "guuka"
    }
  ],
  "word": "guka"
}