"אחד במאי" meaning in Hebrew

{
  "forms": [
    {
      "form": "אֶחָד בְּמַאי",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "echád bemáy",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "g": "m",
        "tr": "echád bemáy",
        "wv": "אֶחָד בְּמַאי"
      },
      "expansion": "אֶחָד בְּמַאי • (echád bemáy) m",
      "name": "he-proper noun"
    }
  ],
  "lang": "Hebrew",
  "lang_code": "he",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Hebrew entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "he",
          "name": "Holidays",
          "orig": "he:Holidays",
          "parents": [
            "Observances",
            "Calendar",
            "Timekeeping",
            "Time",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "he",
          "name": "Socialism",
          "orig": "he:Socialism",
          "parents": [
            "Economics",
            "Ideologies",
            "Leftism",
            "Social sciences",
            "Politics",
            "Society",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "May Day (workers' holiday)"
      ],
      "id": "en-אחד_במאי-he-name-ODBZmLLl",
      "links": [
        [
          "May Day",
          "May Day"
        ]
      ]
    }
  ],
  "word": "אחד במאי"
}

{
  "forms": [
    {
      "form": "אֶחָד בְּמַאי",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "echád bemáy",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "g": "m",
        "tr": "echád bemáy",
        "wv": "אֶחָד בְּמַאי"
      },
      "expansion": "אֶחָד בְּמַאי • (echád bemáy) m",
      "name": "he-proper noun"
    }
  ],
  "lang": "Hebrew",
  "lang_code": "he",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "Hebrew entries with incorrect language header",
        "Hebrew lemmas",
        "Hebrew masculine nouns",
        "Hebrew multiword terms",
        "Hebrew proper nouns",
        "he:Holidays",
        "he:Socialism"
      ],
      "glosses": [
        "May Day (workers' holiday)"
      ],
      "links": [
        [
          "May Day",
          "May Day"
        ]
      ]
    }
  ],
  "word": "אחד במאי"
}