"look for number one" meaning in English

{
  "forms": [
    {
      "form": "looks for number one",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "looking for number one",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "looked for number one",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "looked for number one",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*",
        "head": "look for number one"
      },
      "expansion": "look for number one (third-person singular simple present looks for number one, present participle looking for number one, simple past and past participle looked for number one)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "alt_of": [
        {
          "word": "look out for number one"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Alternative form of look out for number one"
      ],
      "id": "en-look_for_number_one-en-verb-jXR5zxqk",
      "links": [
        [
          "look out for number one",
          "look out for number one#English"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) Alternative form of look out for number one"
      ],
      "tags": [
        "alt-of",
        "alternative",
        "idiomatic"
      ]
    }
  ],
  "word": "look for number one"
}

{
  "forms": [
    {
      "form": "looks for number one",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "looking for number one",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "looked for number one",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "looked for number one",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*",
        "head": "look for number one"
      },
      "expansion": "look for number one (third-person singular simple present looks for number one, present participle looking for number one, simple past and past participle looked for number one)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "alt_of": [
        {
          "word": "look out for number one"
        }
      ],
      "categories": [
        "English entries with incorrect language header",
        "English idioms",
        "English lemmas",
        "English multiword terms",
        "English verbs"
      ],
      "glosses": [
        "Alternative form of look out for number one"
      ],
      "links": [
        [
          "look out for number one",
          "look out for number one#English"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) Alternative form of look out for number one"
      ],
      "tags": [
        "alt-of",
        "alternative",
        "idiomatic"
      ]
    }
  ],
  "word": "look for number one"
}