"өнгөрсөн цаг" meaning in Mongolian

{
  "forms": [
    {
      "form": "öngörsön cag",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "ᠥᠩᠭᠡᠷᠡᠭᠰᠡᠨ ᠴᠠ",
      "roman": "öŋgereɣsen ča",
      "tags": [
        "Mongolian"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ᠥᠩᠭᠡᠷᠡᠭᠰᠡᠨ ᠴᠠ",
        "cat2": "compound terms"
      },
      "expansion": "өнгөрсөн цаг • (öngörsön cag) (Mongolian spelling ᠥᠩᠭᠡᠷᠡᠭᠰᠡᠨ\nᠴᠠ (öŋgereɣsen ča))",
      "name": "mn-noun"
    }
  ],
  "lang": "Mongolian",
  "lang_code": "mn",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Mongolian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Mongolian terms with redundant script codes",
          "parents": [
            "Terms with redundant script codes",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "mn",
          "name": "Grammar",
          "orig": "mn:Grammar",
          "parents": [
            "Linguistics",
            "Language",
            "Social sciences",
            "Communication",
            "Sciences",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "past tense"
      ],
      "id": "en-өнгөрсөн_цаг-mn-noun-~L6w~4eN",
      "links": [
        [
          "grammar",
          "grammar"
        ],
        [
          "past tense",
          "past tense"
        ]
      ],
      "raw_glosses": [
        "(grammar) past tense"
      ],
      "tags": [
        "past"
      ],
      "topics": [
        "grammar",
        "human-sciences",
        "linguistics",
        "sciences"
      ]
    }
  ],
  "word": "өнгөрсөн цаг"
}

{
  "forms": [
    {
      "form": "öngörsön cag",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "ᠥᠩᠭᠡᠷᠡᠭᠰᠡᠨ ᠴᠠ",
      "roman": "öŋgereɣsen ča",
      "tags": [
        "Mongolian"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ᠥᠩᠭᠡᠷᠡᠭᠰᠡᠨ ᠴᠠ",
        "cat2": "compound terms"
      },
      "expansion": "өнгөрсөн цаг • (öngörsön cag) (Mongolian spelling ᠥᠩᠭᠡᠷᠡᠭᠰᠡᠨ\nᠴᠠ (öŋgereɣsen ča))",
      "name": "mn-noun"
    }
  ],
  "lang": "Mongolian",
  "lang_code": "mn",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Mongolian compound terms",
        "Mongolian entries with incorrect language header",
        "Mongolian lemmas",
        "Mongolian multiword terms",
        "Mongolian nouns",
        "Mongolian terms with redundant script codes",
        "mn:Grammar"
      ],
      "glosses": [
        "past tense"
      ],
      "links": [
        [
          "grammar",
          "grammar"
        ],
        [
          "past tense",
          "past tense"
        ]
      ],
      "raw_glosses": [
        "(grammar) past tense"
      ],
      "tags": [
        "past"
      ],
      "topics": [
        "grammar",
        "human-sciences",
        "linguistics",
        "sciences"
      ]
    }
  ],
  "word": "өнгөрсөн цаг"
}