"onder zeil" meaning in Néerlandais

{
  "categories": [
    {
      "kind": "other",
      "name": "Locutions adverbiales en néerlandais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Néerlandais",
      "orig": "néerlandais",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Néerlandais",
  "lang_code": "nl",
  "pos": "adv",
  "pos_title": "Locution adverbiale",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Métaphores en néerlandais",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "En dormant."
      ],
      "id": "fr-onder_zeil-nl-adv-XAtssUld",
      "tags": [
        "figuratively"
      ]
    }
  ],
  "word": "onder zeil"
}

{
  "categories": [
    "Locutions adverbiales en néerlandais",
    "néerlandais"
  ],
  "lang": "Néerlandais",
  "lang_code": "nl",
  "pos": "adv",
  "pos_title": "Locution adverbiale",
  "senses": [
    {
      "categories": [
        "Métaphores en néerlandais"
      ],
      "glosses": [
        "En dormant."
      ],
      "tags": [
        "figuratively"
      ]
    }
  ],
  "word": "onder zeil"
}