"comparer" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": ":af",
        "3": "compare",
        "4": "-er<id:agent noun>",
        "text": "+",
        "tree": "1"
      },
      "expansion": "Etymology tree\nEnglish compare\nProto-Indo-European *-yósder.\nProto-Italic *-āzios\nLatin -āriusnom.\nLatin -āriusbor.\nProto-Germanic *-ārijaz\nProto-West Germanic *-ārī\nOld English -ere\nMiddle English -ere\nEnglish -er\nEnglish comparer\n[Appendix:Glossary#loanword|Borrowed]] from\", \"terms\" : [ { \"id\" : \"agent noun\", \"children\" : [ { \"keyword_abbrev\" : \"nom.\", \"keyword_label\" : \"Nominalization of\", \"terms\" : [ { \"id\" : \"adjective\", \"children\" : [ { \"terms\" : [ { \"id\" : \"adjective\", \"children\" : [ { \"keyword_abbrev\" : \"der.\", \"keyword_label\" : \"Derived from\", \"terms\" : [ { \"id\" : \"suffix\", \"children\" : [ ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*-yós\", \"lang\" : \"ine-pro\" } ], \"keyword\" : \"derived\" } ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Italic\", \"term\" : \"*-āzios\", \"lang\" : \"itc-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Latin\", \"term\" : \"-ārius\", \"lang\" : \"la\" } ], \"keyword\" : \"nominalization\" } ], \"status\" : \"ok\", \"lang_name\" : \"Latin\", \"term\" : \"-ārius\", \"lang\" : \"la\" } ], \"keyword\" : \"bor\" } ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Germanic\", \"term\" : \"*-ārijaz\", \"lang\" : \"gem-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Proto-West Germanic\", \"term\" : \"*-ārī\", \"lang\" : \"gmw-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Old English\", \"term\" : \"-ere\", \"lang\" : \"ang\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Middle English\", \"term\" : \"-ere\", \"lang\" : \"enm\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"English\", \"term\" : \"-er\", \"lang\" : \"en\" } ], \"keyword_label\" : \"From\", \"is_group\" : true, \"keyword\" : \"affix\" } ], \"lang_name\" : \"English\", \"term\" : \"comparer\", \"status\" : \"ok\", \"lang\" : \"en\" }\" data-lang=\"en\" data-title=\"comparer\">\nFrom compare + -er.",
      "name": "ety"
    }
  ],
  "etymology_text": "Etymology tree\nEnglish compare\nProto-Indo-European *-yósder.\nProto-Italic *-āzios\nLatin -āriusnom.\nLatin -āriusbor.\nProto-Germanic *-ārijaz\nProto-West Germanic *-ārī\nOld English -ere\nMiddle English -ere\nEnglish -er\nEnglish comparer\nFrom compare + -er.",
  "forms": [
    {
      "form": "comparers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "comparer (plural comparers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries referencing missing etymons",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with etymology texts",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with etymology trees",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with etymon",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -er (agent noun)",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages using etymon with no ID",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 4 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with etymology trees",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with etymon",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "One who, or that which, compares."
      ],
      "id": "en-comparer-en-noun-OVA6wIwg",
      "links": [
        [
          "compare",
          "compare"
        ]
      ],
      "synonyms": [
        {
          "word": "comparator"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/kəmˈpɛəɹə(ɹ)/"
    },
    {
      "audio": "LL-Q1860 (eng)-Vealhurl-comparer.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/c/cd/LL-Q1860_%28eng%29-Vealhurl-comparer.wav/LL-Q1860_%28eng%29-Vealhurl-comparer.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/c/cd/LL-Q1860_%28eng%29-Vealhurl-comparer.wav/LL-Q1860_%28eng%29-Vealhurl-comparer.wav.ogg",
      "tags": [
        "Southern-England"
      ]
    }
  ],
  "word": "comparer"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": ":af",
        "3": "compare",
        "4": "-er<id:agent noun>",
        "text": "+",
        "tree": "1"
      },
      "expansion": "Etymology tree\nEnglish compare\nProto-Indo-European *-yósder.\nProto-Italic *-āzios\nLatin -āriusnom.\nLatin -āriusbor.\nProto-Germanic *-ārijaz\nProto-West Germanic *-ārī\nOld English -ere\nMiddle English -ere\nEnglish -er\nEnglish comparer\n[Appendix:Glossary#loanword|Borrowed]] from\", \"terms\" : [ { \"id\" : \"agent noun\", \"children\" : [ { \"keyword_abbrev\" : \"nom.\", \"keyword_label\" : \"Nominalization of\", \"terms\" : [ { \"id\" : \"adjective\", \"children\" : [ { \"terms\" : [ { \"id\" : \"adjective\", \"children\" : [ { \"keyword_abbrev\" : \"der.\", \"keyword_label\" : \"Derived from\", \"terms\" : [ { \"id\" : \"suffix\", \"children\" : [ ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*-yós\", \"lang\" : \"ine-pro\" } ], \"keyword\" : \"derived\" } ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Italic\", \"term\" : \"*-āzios\", \"lang\" : \"itc-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Latin\", \"term\" : \"-ārius\", \"lang\" : \"la\" } ], \"keyword\" : \"nominalization\" } ], \"status\" : \"ok\", \"lang_name\" : \"Latin\", \"term\" : \"-ārius\", \"lang\" : \"la\" } ], \"keyword\" : \"bor\" } ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Germanic\", \"term\" : \"*-ārijaz\", \"lang\" : \"gem-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Proto-West Germanic\", \"term\" : \"*-ārī\", \"lang\" : \"gmw-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Old English\", \"term\" : \"-ere\", \"lang\" : \"ang\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Middle English\", \"term\" : \"-ere\", \"lang\" : \"enm\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"English\", \"term\" : \"-er\", \"lang\" : \"en\" } ], \"keyword_label\" : \"From\", \"is_group\" : true, \"keyword\" : \"affix\" } ], \"lang_name\" : \"English\", \"term\" : \"comparer\", \"status\" : \"ok\", \"lang\" : \"en\" }\" data-lang=\"en\" data-title=\"comparer\">\nFrom compare + -er.",
      "name": "ety"
    }
  ],
  "etymology_text": "Etymology tree\nEnglish compare\nProto-Indo-European *-yósder.\nProto-Italic *-āzios\nLatin -āriusnom.\nLatin -āriusbor.\nProto-Germanic *-ārijaz\nProto-West Germanic *-ārī\nOld English -ere\nMiddle English -ere\nEnglish -er\nEnglish comparer\nFrom compare + -er.",
  "forms": [
    {
      "form": "comparers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "comparer (plural comparers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries referencing missing etymons",
        "English entries with etymology texts",
        "English entries with etymology trees",
        "English entries with etymon",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms suffixed with -er (agent noun)",
        "Pages using etymon with no ID",
        "Pages with 4 entries",
        "Pages with entries",
        "Pages with etymology trees",
        "Pages with etymon"
      ],
      "glosses": [
        "One who, or that which, compares."
      ],
      "links": [
        [
          "compare",
          "compare"
        ]
      ],
      "synonyms": [
        {
          "word": "comparator"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/kəmˈpɛəɹə(ɹ)/"
    },
    {
      "audio": "LL-Q1860 (eng)-Vealhurl-comparer.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/c/cd/LL-Q1860_%28eng%29-Vealhurl-comparer.wav/LL-Q1860_%28eng%29-Vealhurl-comparer.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/c/cd/LL-Q1860_%28eng%29-Vealhurl-comparer.wav/LL-Q1860_%28eng%29-Vealhurl-comparer.wav.ogg",
      "tags": [
        "Southern-England"
      ]
    }
  ],
  "word": "comparer"
}