"masta" meaning in Swahili

{
  "etymology_templates": [
    {
      "args": {
        "1": "sw",
        "2": "en",
        "3": "master"
      },
      "expansion": "Borrowed from English master",
      "name": "bor+"
    }
  ],
  "etymology_text": "Borrowed from English master.",
  "forms": [
    {
      "form": "masta",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "sw",
        "2": "noun",
        "head": ""
      },
      "expansion": "masta",
      "name": "head"
    },
    {
      "args": {
        "1": "n"
      },
      "expansion": "masta (n class, plural masta)",
      "name": "sw-noun"
    }
  ],
  "lang": "Swahili",
  "lang_code": "sw",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 7 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Swahili entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "master"
      ],
      "id": "en-masta-sw-noun-~GE7Tf1n",
      "links": [
        [
          "master",
          "master"
        ]
      ],
      "tags": [
        "class-10",
        "class-9"
      ]
    }
  ],
  "word": "masta"
}

{
  "categories": [
    "Pages with 7 entries",
    "Pages with entries",
    "Tok Pisin entries with incorrect language header",
    "Tok Pisin lemmas",
    "Tok Pisin nouns",
    "Tok Pisin terms derived from English",
    "Tok Pisin terms inherited from English"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "sw",
        "2": "en",
        "3": "master"
      },
      "expansion": "Borrowed from English master",
      "name": "bor+"
    }
  ],
  "etymology_text": "Borrowed from English master.",
  "forms": [
    {
      "form": "masta",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "sw",
        "2": "noun",
        "head": ""
      },
      "expansion": "masta",
      "name": "head"
    },
    {
      "args": {
        "1": "n"
      },
      "expansion": "masta (n class, plural masta)",
      "name": "sw-noun"
    }
  ],
  "lang": "Swahili",
  "lang_code": "sw",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 7 entries",
        "Pages with entries",
        "Swahili entries with incorrect language header",
        "Swahili lemmas",
        "Swahili n class nouns",
        "Swahili nouns",
        "Swahili terms borrowed from English",
        "Swahili terms derived from English"
      ],
      "glosses": [
        "master"
      ],
      "links": [
        [
          "master",
          "master"
        ]
      ],
      "tags": [
        "class-10",
        "class-9"
      ]
    }
  ],
  "word": "masta"
}