"ơi" meaning in Vietnamien

{
  "categories": [
    {
      "kind": "other",
      "name": "Particules en vietnamien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Vietnamien",
      "orig": "vietnamien",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Vietnamien",
  "lang_code": "vi",
  "pos": "particle",
  "pos_title": "Particule",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en vietnamien",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "Lan ơi!",
          "translation": "Lan !"
        },
        {
          "text": "Mẹ ơi! Cơm chín chưa ạ?",
          "translation": "Maman ! Est-ce que le riz est prêt ?"
        },
        {
          "text": "Trời ơi!",
          "translation": "Mon Dieu !"
        }
      ],
      "glosses": [
        "Particule accolé un nom ou un titre de parenté d’une personne, utilisée pour attirer son attention."
      ],
      "id": "fr-ơi-vi-particle-Hd4g2u0k"
    }
  ],
  "word": "ơi"
}

{
  "categories": [
    "Particules en vietnamien",
    "vietnamien"
  ],
  "lang": "Vietnamien",
  "lang_code": "vi",
  "pos": "particle",
  "pos_title": "Particule",
  "senses": [
    {
      "categories": [
        "Exemples en vietnamien"
      ],
      "examples": [
        {
          "text": "Lan ơi!",
          "translation": "Lan !"
        },
        {
          "text": "Mẹ ơi! Cơm chín chưa ạ?",
          "translation": "Maman ! Est-ce que le riz est prêt ?"
        },
        {
          "text": "Trời ơi!",
          "translation": "Mon Dieu !"
        }
      ],
      "glosses": [
        "Particule accolé un nom ou un titre de parenté d’une personne, utilisée pour attirer son attention."
      ]
    }
  ],
  "word": "ơi"
}