"testing, testing" meaning in English

{
  "forms": [
    {
      "form": "testing testing",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "interjection"
      },
      "expansion": "testing, testing",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Afrikaans translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Japanese translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Portuguese translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Romanian translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Spanish translations",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A phrase used to check loudspeakers such as microphones and intercoms or wireless communications like a phone call."
      ],
      "id": "en-testing,_testing-en-intj-2Ty8SDu8",
      "links": [
        [
          "check",
          "check#Verb"
        ],
        [
          "loudspeakers",
          "loudspeaker#English"
        ],
        [
          "microphones",
          "microphone#English"
        ],
        [
          "intercoms",
          "intercom#English"
        ],
        [
          "wireless",
          "wireless#Adjective"
        ],
        [
          "communications",
          "communication#Noun"
        ],
        [
          "phone call",
          "phone call#English"
        ]
      ],
      "related": [
        {
          "word": "soundcheck"
        }
      ],
      "translations": [
        {
          "code": "af",
          "lang": "Afrikaans",
          "sense": "testing, testing",
          "word": "toets, toets"
        },
        {
          "code": "ja",
          "lang": "Japanese",
          "roman": "tesu tesu",
          "sense": "testing, testing",
          "word": "テステス"
        },
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "testing, testing",
          "word": "som, som"
        },
        {
          "code": "ro",
          "lang": "Romanian",
          "sense": "testing, testing",
          "word": "doi, zece, doi, zece"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "testing, testing",
          "word": "probando, probando"
        }
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-us-testing, testing.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/2/21/En-us-testing%2C_testing.ogg/En-us-testing%2C_testing.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/2/21/En-us-testing%2C_testing.ogg"
    }
  ],
  "word": "testing, testing"
}

{
  "forms": [
    {
      "form": "testing testing",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "interjection"
      },
      "expansion": "testing, testing",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "related": [
    {
      "word": "soundcheck"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English interjections",
        "English lemmas",
        "English multiword terms",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Afrikaans translations",
        "Terms with Japanese translations",
        "Terms with Portuguese translations",
        "Terms with Romanian translations",
        "Terms with Spanish translations"
      ],
      "glosses": [
        "A phrase used to check loudspeakers such as microphones and intercoms or wireless communications like a phone call."
      ],
      "links": [
        [
          "check",
          "check#Verb"
        ],
        [
          "loudspeakers",
          "loudspeaker#English"
        ],
        [
          "microphones",
          "microphone#English"
        ],
        [
          "intercoms",
          "intercom#English"
        ],
        [
          "wireless",
          "wireless#Adjective"
        ],
        [
          "communications",
          "communication#Noun"
        ],
        [
          "phone call",
          "phone call#English"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-us-testing, testing.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/2/21/En-us-testing%2C_testing.ogg/En-us-testing%2C_testing.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/2/21/En-us-testing%2C_testing.ogg"
    }
  ],
  "translations": [
    {
      "code": "af",
      "lang": "Afrikaans",
      "sense": "testing, testing",
      "word": "toets, toets"
    },
    {
      "code": "ja",
      "lang": "Japanese",
      "roman": "tesu tesu",
      "sense": "testing, testing",
      "word": "テステス"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "testing, testing",
      "word": "som, som"
    },
    {
      "code": "ro",
      "lang": "Romanian",
      "sense": "testing, testing",
      "word": "doi, zece, doi, zece"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "testing, testing",
      "word": "probando, probando"
    }
  ],
  "word": "testing, testing"
}