"to a tick" meaning in English

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  "lang": "English",
  "lang_code": "en",
  "pos": "prep_phrase",
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      "examples": [
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          "ref": "1913, Arthur Conan Doyle, “(please specify the page)”, in The Poison Belt […], London; New York, N.Y.: Hodder and Stoughton, →OCLC:",
          "text": "Lord John rose and shook him by the hand. \"My sentiment to a tick,\" said he.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Exactly; perfectly; to a T."
      ],
      "id": "en-to_a_tick-en-prep_phrase-2gTHD0wS",
      "links": [
        [
          "perfectly",
          "perfectly"
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        [
          "to a T",
          "to a T"
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  ],
  "word": "to a tick"
}

{
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      "expansion": "to a tick",
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  "lang_code": "en",
  "pos": "prep_phrase",
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          "text": "Lord John rose and shook him by the hand. \"My sentiment to a tick,\" said he.",
          "type": "quote"
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      "glosses": [
        "Exactly; perfectly; to a T."
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          "to a T",
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  "word": "to a tick"
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