"-ã" meaning in Portuguese

{
  "etymology_templates": [
    {
      "args": {
        "1": "pt",
        "2": "roa-opt",
        "3": "-ãa"
      },
      "expansion": "Old Galician-Portuguese -ãa",
      "name": "inh"
    },
    {
      "args": {
        "1": "pt",
        "2": "la",
        "3": "-āna"
      },
      "expansion": "Latin -āna",
      "name": "der"
    }
  ],
  "etymology_text": "From Old Galician-Portuguese -ãa, from Latin -āna.",
  "head_templates": [
    {
      "args": {
        "1": "pt",
        "2": "suffix form",
        "3": "",
        "4": "",
        "5": "",
        "6": "-ãs",
        "7": "",
        "8": "",
        "g": "f",
        "g2": "",
        "head": "",
        "sort": "a"
      },
      "expansion": "-ã f",
      "name": "head"
    },
    {
      "args": {
        "1": "noun form",
        "2": "a",
        "3": "",
        "4": "f",
        "pl": "-ãs",
        "pos2": "adjective form"
      },
      "expansion": "-ã f",
      "name": "pt-suffix"
    }
  ],
  "lang": "Portuguese",
  "lang_code": "pt",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 3 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Portuguese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Portuguese terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Portuguese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "alemão (“German man”) → alemã (“German woman”)"
        },
        {
          "text": "anão (“male dwarf”) → anã (“female dwarf”)"
        },
        {
          "text": "escrivão (“male keeper”) → escrivã (“female keeper”)"
        }
      ],
      "glosses": [
        "forms the feminine of nouns and adjectives ending in -ão"
      ],
      "id": "en--ã-pt-suffix-r9Y-pVPC",
      "links": [
        [
          "feminine",
          "feminine#English"
        ],
        [
          "-ão",
          "-ão#Portuguese"
        ]
      ],
      "tags": [
        "feminine",
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈɐ̃/",
      "tags": [
        "Brazil"
      ]
    },
    {
      "ipa": "/ˈɐ̃/",
      "tags": [
        "Portugal"
      ]
    },
    {
      "rhymes": "-ɐ̃"
    }
  ],
  "word": "-ã"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "pt",
        "2": "roa-opt",
        "3": "-ãa"
      },
      "expansion": "Old Galician-Portuguese -ãa",
      "name": "inh"
    },
    {
      "args": {
        "1": "pt",
        "2": "la",
        "3": "-āna"
      },
      "expansion": "Latin -āna",
      "name": "der"
    }
  ],
  "etymology_text": "From Old Galician-Portuguese -ãa, from Latin -āna.",
  "head_templates": [
    {
      "args": {
        "1": "pt",
        "2": "suffix form",
        "3": "",
        "4": "",
        "5": "",
        "6": "-ãs",
        "7": "",
        "8": "",
        "g": "f",
        "g2": "",
        "head": "",
        "sort": "a"
      },
      "expansion": "-ã f",
      "name": "head"
    },
    {
      "args": {
        "1": "noun form",
        "2": "a",
        "3": "",
        "4": "f",
        "pl": "-ãs",
        "pos2": "adjective form"
      },
      "expansion": "-ã f",
      "name": "pt-suffix"
    }
  ],
  "lang": "Portuguese",
  "lang_code": "pt",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Pages with 3 entries",
        "Pages with entries",
        "Portuguese 1-syllable words",
        "Portuguese entries with incorrect language header",
        "Portuguese non-lemma forms",
        "Portuguese suffix forms",
        "Portuguese terms derived from Latin",
        "Portuguese terms derived from Old Galician-Portuguese",
        "Portuguese terms inherited from Old Galician-Portuguese",
        "Portuguese terms with IPA pronunciation",
        "Portuguese terms with non-redundant non-automated sortkeys",
        "Portuguese terms with redundant sortkeys",
        "Rhymes:Portuguese/ɐ̃"
      ],
      "examples": [
        {
          "text": "alemão (“German man”) → alemã (“German woman”)"
        },
        {
          "text": "anão (“male dwarf”) → anã (“female dwarf”)"
        },
        {
          "text": "escrivão (“male keeper”) → escrivã (“female keeper”)"
        }
      ],
      "glosses": [
        "forms the feminine of nouns and adjectives ending in -ão"
      ],
      "links": [
        [
          "feminine",
          "feminine#English"
        ],
        [
          "-ão",
          "-ão#Portuguese"
        ]
      ],
      "tags": [
        "feminine",
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈɐ̃/",
      "tags": [
        "Brazil"
      ]
    },
    {
      "ipa": "/ˈɐ̃/",
      "tags": [
        "Portugal"
      ]
    },
    {
      "rhymes": "-ɐ̃"
    }
  ],
  "word": "-ã"
}