"side job" meaning in English

{
  "forms": [
    {
      "form": "side jobs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "side job (plural side jobs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "antonyms": [
        {
          "word": "day job"
        }
      ],
      "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 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "Near-synonyms: side gig, side hustle"
        }
      ],
      "glosses": [
        "A (temporary or informal) job being done on the side; a person's non-primary job or other occupation, often distinguished by factors such as formality, legality, personal priority, and/or financial return."
      ],
      "id": "en-side_job-en-noun-1ax6IWzE",
      "links": [
        [
          "job",
          "job"
        ],
        [
          "on the side",
          "on the side"
        ]
      ],
      "related": [
        {
          "word": "moonlighting"
        }
      ]
    }
  ],
  "word": "side job"
}

{
  "forms": [
    {
      "form": "side jobs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "side job (plural side jobs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "moonlighting"
    }
  ],
  "senses": [
    {
      "antonyms": [
        {
          "word": "day job"
        }
      ],
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 2 entries",
        "Pages with entries"
      ],
      "examples": [
        {
          "text": "Near-synonyms: side gig, side hustle"
        }
      ],
      "glosses": [
        "A (temporary or informal) job being done on the side; a person's non-primary job or other occupation, often distinguished by factors such as formality, legality, personal priority, and/or financial return."
      ],
      "links": [
        [
          "job",
          "job"
        ],
        [
          "on the side",
          "on the side"
        ]
      ]
    }
  ],
  "word": "side job"
}