"-šana" meaning in Latvian

{
  "etymology_text": "Related to Lithuanian -sena.",
  "head_templates": [
    {
      "args": {
        "1": "lv",
        "2": "suffix",
        "head": "",
        "sort": ""
      },
      "expansion": "-šana",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "-šana",
      "name": "lv-suffix"
    }
  ],
  "lang": "Latvian",
  "lang_code": "lv",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Latvian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages using catfix",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Added to verbs to form feminine action nouns, referring to an activity that corresponds to the meaning of the original verb (like English -ing or -tion)."
      ],
      "id": "en--šana-lv-suffix-40fe54u6",
      "links": [
        [
          "-ing",
          "-ing#English"
        ],
        [
          "-tion",
          "-tion#English"
        ]
      ],
      "related": [
        {
          "roman": "reflexive counterpart of -šana",
          "word": "-šanās"
        }
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-šana"
}

{
  "etymology_text": "Related to Lithuanian -sena.",
  "head_templates": [
    {
      "args": {
        "1": "lv",
        "2": "suffix",
        "head": "",
        "sort": ""
      },
      "expansion": "-šana",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "-šana",
      "name": "lv-suffix"
    }
  ],
  "lang": "Latvian",
  "lang_code": "lv",
  "pos": "suffix",
  "related": [
    {
      "roman": "reflexive counterpart of -šana",
      "word": "-šanās"
    }
  ],
  "senses": [
    {
      "categories": [
        "Latvian entries with incorrect language header",
        "Latvian lemmas",
        "Latvian suffixes",
        "Pages using catfix",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "Added to verbs to form feminine action nouns, referring to an activity that corresponds to the meaning of the original verb (like English -ing or -tion)."
      ],
      "links": [
        [
          "-ing",
          "-ing#English"
        ],
        [
          "-tion",
          "-tion#English"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-šana"
}