"phase in" meaning in English

{
  "forms": [
    {
      "form": "phases in",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "phasing in",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "phased in",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "phased in",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "phase in (third-person singular simple present phases in, present participle phasing in, simple past and past participle phased in)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "antonyms": [
        {
          "word": "phase out"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English phrasal verbs formed with \"in\"",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "The government will phase in the new education system over a period of three years.",
          "type": "example"
        },
        {
          "text": "The program phased in last year.",
          "type": "example"
        }
      ],
      "glosses": [
        "To introduce (something) little by little, either via discrete phases of increase or (by extension) by continuous gradations; to introduce in phases, or as if by phases (gradually); to begin (something) gradually."
      ],
      "id": "en-phase_in-en-verb-AZmkfDuZ",
      "links": [
        [
          "introduce",
          "introduce"
        ],
        [
          "phase",
          "phase"
        ]
      ],
      "raw_glosses": [
        "(transitive) To introduce (something) little by little, either via discrete phases of increase or (by extension) by continuous gradations; to introduce in phases, or as if by phases (gradually); to begin (something) gradually."
      ],
      "tags": [
        "transitive"
      ]
    }
  ],
  "word": "phase in"
}

{
  "forms": [
    {
      "form": "phases in",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "phasing in",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "phased in",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "phased in",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "phase in (third-person singular simple present phases in, present participle phasing in, simple past and past participle phased in)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "antonyms": [
        {
          "word": "phase out"
        }
      ],
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English phrasal verbs",
        "English phrasal verbs formed with \"in\"",
        "English terms with usage examples",
        "English transitive verbs",
        "English verbs",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "text": "The government will phase in the new education system over a period of three years.",
          "type": "example"
        },
        {
          "text": "The program phased in last year.",
          "type": "example"
        }
      ],
      "glosses": [
        "To introduce (something) little by little, either via discrete phases of increase or (by extension) by continuous gradations; to introduce in phases, or as if by phases (gradually); to begin (something) gradually."
      ],
      "links": [
        [
          "introduce",
          "introduce"
        ],
        [
          "phase",
          "phase"
        ]
      ],
      "raw_glosses": [
        "(transitive) To introduce (something) little by little, either via discrete phases of increase or (by extension) by continuous gradations; to introduce in phases, or as if by phases (gradually); to begin (something) gradually."
      ],
      "tags": [
        "transitive"
      ]
    }
  ],
  "word": "phase in"
}