"oiltight" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "oil",
        "3": "tight"
      },
      "expansion": "oil + tight",
      "name": "compound"
    }
  ],
  "etymology_text": "From oil + tight.",
  "forms": [
    {
      "form": "more oiltight",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most oiltight",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "oiltight (comparative more oiltight, superlative most oiltight)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "So tightly made that oil cannot enter or escape."
      ],
      "id": "en-oiltight-en-adj-XIU2Xpm1",
      "related": [
        {
          "word": "oiltightness"
        }
      ]
    }
  ],
  "word": "oiltight"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "oil",
        "3": "tight"
      },
      "expansion": "oil + tight",
      "name": "compound"
    }
  ],
  "etymology_text": "From oil + tight.",
  "forms": [
    {
      "form": "more oiltight",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most oiltight",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "oiltight (comparative more oiltight, superlative most oiltight)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "related": [
    {
      "word": "oiltightness"
    }
  ],
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English compound terms",
        "English entries with incorrect language header",
        "English lemmas",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "So tightly made that oil cannot enter or escape."
      ]
    }
  ],
  "word": "oiltight"
}