"boundary matcher" meaning in All languages combined

{
  "categories": [
    {
      "kind": "other",
      "name": "Compositions en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Locutions nominales en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anglais",
      "orig": "anglais",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Composé de boundary et de matcher."
  ],
  "forms": [
    {
      "form": "boundary matchers",
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en anglais",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Exemples en anglais à traduire",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Lexique en anglais des expressions rationnelles",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Wiktionnaire:Définitions manquantes en anglais",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "Félix López, Víctor Romero, Mastering Python Regular Expressions, Packt Publishing, 2014, page 21",
          "text": "The boundary matchers are a number of identifiers that will correspond to a particular position inside of the input."
        }
      ],
      "glosses": [
        "Définition manquante ou à compléter. (Ajouter)"
      ],
      "id": "fr-boundary_matcher-en-noun-HZ5rnInw",
      "raw_tags": [
        "Expressions rationnelles"
      ]
    }
  ],
  "word": "boundary matcher"
}

{
  "categories": [
    "Compositions en anglais",
    "Locutions nominales en anglais",
    "anglais"
  ],
  "etymology_texts": [
    "Composé de boundary et de matcher."
  ],
  "forms": [
    {
      "form": "boundary matchers",
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "senses": [
    {
      "categories": [
        "Exemples en anglais",
        "Exemples en anglais à traduire",
        "Lexique en anglais des expressions rationnelles",
        "Wiktionnaire:Définitions manquantes en anglais"
      ],
      "examples": [
        {
          "ref": "Félix López, Víctor Romero, Mastering Python Regular Expressions, Packt Publishing, 2014, page 21",
          "text": "The boundary matchers are a number of identifiers that will correspond to a particular position inside of the input."
        }
      ],
      "glosses": [
        "Définition manquante ou à compléter. (Ajouter)"
      ],
      "raw_tags": [
        "Expressions rationnelles"
      ]
    }
  ],
  "word": "boundary matcher"
}