"אונטערן" meaning in Yiddish

{
  "forms": [
    {
      "form": "untern",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "yi",
        "2": "preposition"
      },
      "expansion": "אונטערן • (untern)",
      "name": "head"
    }
  ],
  "lang": "Yiddish",
  "lang_code": "yi",
  "pos": "prep",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "(unter dem): under the",
          "word": "אונטער דעם"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Yiddish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Yiddish prepositions",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Contraction of אונטער דעם (unter dem): under the"
      ],
      "id": "en-אונטערן-yi-prep-96Qy62es",
      "links": [
        [
          "אונטער",
          "אונטער#Yiddish"
        ],
        [
          "דעם",
          "דעם#Yiddish"
        ],
        [
          "under",
          "under"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "contraction"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈuntəʁn/"
    }
  ],
  "word": "אונטערן"
}

{
  "forms": [
    {
      "form": "untern",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "yi",
        "2": "preposition"
      },
      "expansion": "אונטערן • (untern)",
      "name": "head"
    }
  ],
  "lang": "Yiddish",
  "lang_code": "yi",
  "pos": "prep",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "(unter dem): under the",
          "word": "אונטער דעם"
        }
      ],
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Yiddish contractions",
        "Yiddish entries with incorrect language header",
        "Yiddish lemmas",
        "Yiddish prepositions"
      ],
      "glosses": [
        "Contraction of אונטער דעם (unter dem): under the"
      ],
      "links": [
        [
          "אונטער",
          "אונטער#Yiddish"
        ],
        [
          "דעם",
          "דעם#Yiddish"
        ],
        [
          "under",
          "under"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "contraction"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈuntəʁn/"
    }
  ],
  "word": "אונטערן"
}