"sei" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "sei whale"
      },
      "expansion": "sei whale",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "no",
        "3": "seihval",
        "4": "seihval, seikval"
      },
      "expansion": "Norwegian seihval, seikval",
      "name": "der"
    },
    {
      "args": {
        "1": "nb",
        "2": "sei",
        "3": "",
        "4": "pollock"
      },
      "expansion": "sei (“pollock”)",
      "name": "m"
    },
    {
      "args": {
        "1": "nb",
        "2": "hval",
        "3": "",
        "4": "whale"
      },
      "expansion": "hval (“whale”)",
      "name": "m"
    },
    {
      "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": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "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": "quotation"
        }
      ],
      "glosses": [
        "A sei whale."
      ],
      "id": "en-sei-en-noun-2et5LXrz",
      "links": [
        [
          "sei whale",
          "sei whale"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/seɪ/"
    },
    {
      "rhymes": "-eɪ"
    },
    {
      "homophone": "say"
    }
  ],
  "word": "sei"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "sei whale"
      },
      "expansion": "sei whale",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "no",
        "3": "seihval",
        "4": "seihval, seikval"
      },
      "expansion": "Norwegian seihval, seikval",
      "name": "der"
    },
    {
      "args": {
        "1": "nb",
        "2": "sei",
        "3": "",
        "4": "pollock"
      },
      "expansion": "sei (“pollock”)",
      "name": "m"
    },
    {
      "args": {
        "1": "nb",
        "2": "hval",
        "3": "",
        "4": "whale"
      },
      "expansion": "hval (“whale”)",
      "name": "m"
    },
    {
      "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 1-syllable words",
        "English countable nouns",
        "English doublets",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English nouns",
        "English terms derived from Norwegian",
        "English terms with IPA pronunciation",
        "English terms with homophones",
        "English terms with quotations",
        "Rhymes:English/eɪ",
        "en:Whales"
      ],
      "examples": [
        {
          "ref": "2005, Wayne Ledwell, Whales and Dolphins of Newfoundland and Labrador",
          "text": "Seis also feed by engulfing small schooling fish.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A sei whale."
      ],
      "links": [
        [
          "sei whale",
          "sei whale"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/seɪ/"
    },
    {
      "rhymes": "-eɪ"
    },
    {
      "homophone": "say"
    }
  ],
  "word": "sei"
}