"cross sea" meaning in English

{
  "etymology_text": "The swells of the waves, when they meet at right angles, form cross shapes.",
  "forms": [
    {
      "form": "cross seas",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "cross sea (plural cross seas)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Nautical",
          "orig": "en:Nautical",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A (dangerous) sea with two wave systems traveling at oblique angles, due to the wind over it shifting direction or the waves of two storm systems meeting."
      ],
      "id": "en-cross_sea-en-noun-yhwG8XZT",
      "links": [
        [
          "nautical",
          "nautical"
        ]
      ],
      "raw_glosses": [
        "(nautical) A (dangerous) sea with two wave systems traveling at oblique angles, due to the wind over it shifting direction or the waves of two storm systems meeting."
      ],
      "topics": [
        "nautical",
        "transport"
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "sea",
          "word": "ristiaallokko"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "sea",
          "tags": [
            "feminine"
          ],
          "word": "Kreuzsee"
        }
      ]
    }
  ],
  "word": "cross sea"
}

{
  "etymology_text": "The swells of the waves, when they meet at right angles, form cross shapes.",
  "forms": [
    {
      "form": "cross seas",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "cross sea (plural cross seas)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "en:Nautical"
      ],
      "glosses": [
        "A (dangerous) sea with two wave systems traveling at oblique angles, due to the wind over it shifting direction or the waves of two storm systems meeting."
      ],
      "links": [
        [
          "nautical",
          "nautical"
        ]
      ],
      "raw_glosses": [
        "(nautical) A (dangerous) sea with two wave systems traveling at oblique angles, due to the wind over it shifting direction or the waves of two storm systems meeting."
      ],
      "topics": [
        "nautical",
        "transport"
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "sea",
      "word": "ristiaallokko"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "sea",
      "tags": [
        "feminine"
      ],
      "word": "Kreuzsee"
    }
  ],
  "word": "cross sea"
}