"taper down" meaning in Anglais

{
  "categories": [
    {
      "kind": "other",
      "name": "Compositions en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Locutions verbales en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anglais",
      "orig": "anglais",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Composé de taper et de down."
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "verb",
  "pos_title": "Locution verbale",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en anglais",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Exemples en anglais à traduire",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "Mary-Ann Ochota, « Hidden Histories: A spotter’s guide to the British landscape », Frances Lincoln, 2016, page 6",
          "text": "At one end the bank tapers down into the farmer’s field. At the other end, there’s a passage into a dark inner chamber."
        }
      ],
      "glosses": [
        "Se réduire progressivement en matière de niveau, d’activité sans pour autant disparaitre."
      ],
      "id": "fr-taper_down-en-verb-tlFs1bVB"
    }
  ],
  "word": "taper down"
}

{
  "categories": [
    "Compositions en anglais",
    "Locutions verbales en anglais",
    "anglais"
  ],
  "etymology_texts": [
    "Composé de taper et de down."
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "verb",
  "pos_title": "Locution verbale",
  "senses": [
    {
      "categories": [
        "Exemples en anglais",
        "Exemples en anglais à traduire"
      ],
      "examples": [
        {
          "ref": "Mary-Ann Ochota, « Hidden Histories: A spotter’s guide to the British landscape », Frances Lincoln, 2016, page 6",
          "text": "At one end the bank tapers down into the farmer’s field. At the other end, there’s a passage into a dark inner chamber."
        }
      ],
      "glosses": [
        "Se réduire progressivement en matière de niveau, d’activité sans pour autant disparaitre."
      ]
    }
  ],
  "word": "taper down"
}