"стянуться" meaning in 俄语

{
  "lang": "俄语",
  "lang_code": "ru",
  "pos": "unknown",
  "senses": [
    {
      "glosses": [
        "(不用一、二人称)缩短"
      ],
      "id": "zh-стянуться-ru-unknown-fwwNoQ~h"
    },
    {
      "glosses": [
        "〈口〉系紧腰"
      ],
      "id": "zh-стянуться-ru-unknown-WjmMbt6p"
    },
    {
      "glosses": [
        "(不用单一、二人称)集合到一起，麇集"
      ],
      "id": "zh-стянуться-ru-unknown-2vQPTN9d"
    }
  ],
  "word": "стянуться"
}

{
  "lang": "俄语",
  "lang_code": "ru",
  "pos": "unknown",
  "senses": [
    {
      "glosses": [
        "(不用一、二人称)缩短"
      ]
    },
    {
      "glosses": [
        "〈口〉系紧腰"
      ]
    },
    {
      "glosses": [
        "(不用单一、二人称)集合到一起，麇集"
      ]
    }
  ],
  "word": "стянуться"
}