"welcome swallow" meaning in English

{
  "forms": [
    {
      "form": "welcome swallows",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "welcome swallow (plural welcome swallows)",
      "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": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Swallows",
          "orig": "en:Swallows",
          "parents": [
            "Perching birds",
            "Birds",
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A small passerine bird, taxonomic name Hirundo neoxena"
      ],
      "id": "en-welcome_swallow-en-noun-E~iY1fKs",
      "links": [
        [
          "passerine",
          "passerine"
        ]
      ],
      "translations": [
        {
          "code": "nl",
          "lang": "Dutch",
          "sense": "Translations",
          "word": "welkomzwaluw"
        },
        {
          "code": "eo",
          "lang": "Esperanto",
          "sense": "Translations",
          "word": "Aŭstralia hirundo"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "Translations",
          "word": "hirondelle messagère"
        },
        {
          "code": "hu",
          "lang": "Hungarian",
          "sense": "Translations",
          "word": "ausztrál fecske"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "Translations",
          "word": "jaskółka australijska"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "novogvinéjskaja lástočka",
          "sense": "Translations",
          "word": "новогвине́йская ла́сточка"
        },
        {
          "code": "sk",
          "lang": "Slovak",
          "sense": "Translations",
          "word": "lastovička štebotavá"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "Translations",
          "word": "golondrina australiana"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "Translations",
          "word": "välkomstsvala"
        },
        {
          "code": "tr",
          "lang": "Turkish",
          "sense": "Translations",
          "word": "Avustralya kırlangıcı"
        }
      ],
      "wikipedia": [
        "welcome swallow"
      ]
    }
  ],
  "word": "welcome swallow"
}

{
  "forms": [
    {
      "form": "welcome swallows",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "welcome swallow (plural welcome swallows)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "Entries using missing taxonomic name (species)",
        "Translation table header lacks gloss",
        "en:Swallows"
      ],
      "glosses": [
        "A small passerine bird, taxonomic name Hirundo neoxena"
      ],
      "links": [
        [
          "passerine",
          "passerine"
        ]
      ],
      "wikipedia": [
        "welcome swallow"
      ]
    }
  ],
  "translations": [
    {
      "code": "nl",
      "lang": "Dutch",
      "sense": "Translations",
      "word": "welkomzwaluw"
    },
    {
      "code": "eo",
      "lang": "Esperanto",
      "sense": "Translations",
      "word": "Aŭstralia hirundo"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "Translations",
      "word": "hirondelle messagère"
    },
    {
      "code": "hu",
      "lang": "Hungarian",
      "sense": "Translations",
      "word": "ausztrál fecske"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "Translations",
      "word": "jaskółka australijska"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "novogvinéjskaja lástočka",
      "sense": "Translations",
      "word": "новогвине́йская ла́сточка"
    },
    {
      "code": "sk",
      "lang": "Slovak",
      "sense": "Translations",
      "word": "lastovička štebotavá"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "Translations",
      "word": "golondrina australiana"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "Translations",
      "word": "välkomstsvala"
    },
    {
      "code": "tr",
      "lang": "Turkish",
      "sense": "Translations",
      "word": "Avustralya kırlangıcı"
    }
  ],
  "word": "welcome swallow"
}