"sei" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "no",
        "3": "seihval",
        "4": "seihval, seikval"
      },
      "expansion": "Norwegian seihval, seikval",
      "name": "der"
    },
    {
      "args": {
        "1": "en",
        "2": "saithe"
      },
      "expansion": "Doublet of saithe",
      "name": "doublet"
    }
  ],
  "etymology_text": "From sei whale, from Norwegian seihval, seikval, from sei (“pollock”) + hval (“whale”). Doublet of saithe.",
  "forms": [
    {
      "form": "seis",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "sei (plural seis)",
      "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": "other",
          "name": "Pages with 25 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Whales",
          "orig": "en:Whales",
          "parents": [
            "Cetaceans",
            "Even-toed ungulates",
            "Mammals",
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2005, Wayne Ledwell, Whales and Dolphins of Newfoundland and Labrador:",
          "text": "Seis also feed by engulfing small schooling fish.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A sei whale."
      ],
      "id": "en-sei-en-noun-2et5LXrz",
      "links": [
        [
          "sei whale",
          "sei whale"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/seɪ/"
    },
    {
      "audio": "LL-Q1860 (eng)-Vealhurl-sei.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/d/de/LL-Q1860_%28eng%29-Vealhurl-sei.wav/LL-Q1860_%28eng%29-Vealhurl-sei.wav.mp3",
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    },
    {
      "rhymes": "-eɪ"
    },
    {
      "homophone": "say"
    }
  ],
  "word": "sei"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "no",
        "3": "seihval",
        "4": "seihval, seikval"
      },
      "expansion": "Norwegian seihval, seikval",
      "name": "der"
    },
    {
      "args": {
        "1": "en",
        "2": "saithe"
      },
      "expansion": "Doublet of saithe",
      "name": "doublet"
    }
  ],
  "etymology_text": "From sei whale, from Norwegian seihval, seikval, from sei (“pollock”) + hval (“whale”). Doublet of saithe.",
  "forms": [
    {
      "form": "seis",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "sei (plural seis)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English doublets",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms derived from Norwegian",
        "English terms with homophones",
        "English terms with quotations",
        "Pages with 25 entries",
        "Pages with entries",
        "Rhymes:English/eɪ",
        "Rhymes:English/eɪ/1 syllable",
        "en:Whales"
      ],
      "examples": [
        {
          "ref": "2005, Wayne Ledwell, Whales and Dolphins of Newfoundland and Labrador:",
          "text": "Seis also feed by engulfing small schooling fish.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A sei whale."
      ],
      "links": [
        [
          "sei whale",
          "sei whale"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/seɪ/"
    },
    {
      "audio": "LL-Q1860 (eng)-Vealhurl-sei.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/d/de/LL-Q1860_%28eng%29-Vealhurl-sei.wav/LL-Q1860_%28eng%29-Vealhurl-sei.wav.mp3",
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    },
    {
      "rhymes": "-eɪ"
    },
    {
      "homophone": "say"
    }
  ],
  "word": "sei"
}