"κατ'" meaning in Greek

{
  "forms": [
    {
      "form": "κατ’",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "kat’",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "καθ’",
      "roman": "kath’",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "el",
        "2": "preposition",
        "head": "",
        "sort": ""
      },
      "expansion": "κατ’ • (kat’)",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "κατ’ • (kat’)",
      "name": "el-prep"
    }
  ],
  "lang": "Greek",
  "lang_code": "el",
  "pos": "prep",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "katá",
          "word": "κατά"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Greek entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Greek prepositions",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "english": "as opposed to",
          "roman": "kat’ antidiastolí pros",
          "word": "κατ’ αντιδιαστολή προς"
        },
        {
          "english": "in opposing lines",
          "roman": "kat’ antizygía",
          "tags": [
            "phrase"
          ],
          "word": "κατ’ αντιζυγία"
        }
      ],
      "glosses": [
        "Alternative form of κατά (katá)"
      ],
      "id": "en-κατ'-el-prep-P7o26bAM",
      "links": [
        [
          "κατά",
          "κατά#Greek"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "κατ'"
}

{
  "derived": [
    {
      "english": "as opposed to",
      "roman": "kat’ antidiastolí pros",
      "word": "κατ’ αντιδιαστολή προς"
    },
    {
      "english": "in opposing lines",
      "roman": "kat’ antizygía",
      "tags": [
        "phrase"
      ],
      "word": "κατ’ αντιζυγία"
    }
  ],
  "forms": [
    {
      "form": "κατ’",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "kat’",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "καθ’",
      "roman": "kath’",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "el",
        "2": "preposition",
        "head": "",
        "sort": ""
      },
      "expansion": "κατ’ • (kat’)",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "κατ’ • (kat’)",
      "name": "el-prep"
    }
  ],
  "lang": "Greek",
  "lang_code": "el",
  "pos": "prep",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "katá",
          "word": "κατά"
        }
      ],
      "categories": [
        "Greek entries with incorrect language header",
        "Greek lemmas",
        "Greek prepositions",
        "Pages with 2 entries",
        "Pages with entries"
      ],
      "glosses": [
        "Alternative form of κατά (katá)"
      ],
      "links": [
        [
          "κατά",
          "κατά#Greek"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "κατ'"
}