"buffer up" meaning in English

{
  "forms": [
    {
      "form": "buffers up",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "buffering up",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "buffered up",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "buffered up",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "buffer up (third-person singular simple present buffers up, present participle buffering up, simple past and past participle buffered up)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English phrasal verbs with particle (up)",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Rail transportation",
          "orig": "en:Rail transportation",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1964 November, “The Electrification of BR: 5 The Southern's Bournemouth scheme”, in Modern Railways, page 321",
          "text": "The Type 3 will propel the unit on the return working to Bournemouth Central, where it will be buffered up to the remaining units for the journey back to Waterloo.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To move (a rail vehicle) so that its buffers are touching the buffers of another rail vehicle."
      ],
      "id": "en-buffer_up-en-verb-hcLTSn5G",
      "links": [
        [
          "rail transport",
          "rail transport"
        ]
      ],
      "raw_glosses": [
        "(rail transport, transitive) To move (a rail vehicle) so that its buffers are touching the buffers of another rail vehicle."
      ],
      "tags": [
        "transitive"
      ],
      "topics": [
        "rail-transport",
        "railways",
        "transport"
      ]
    }
  ],
  "word": "buffer up"
}

{
  "forms": [
    {
      "form": "buffers up",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "buffering up",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "buffered up",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "buffered up",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "buffer up (third-person singular simple present buffers up, present participle buffering up, simple past and past participle buffered up)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English phrasal verbs",
        "English phrasal verbs with particle (up)",
        "English terms with quotations",
        "English transitive verbs",
        "English verbs",
        "en:Rail transportation"
      ],
      "examples": [
        {
          "ref": "1964 November, “The Electrification of BR: 5 The Southern's Bournemouth scheme”, in Modern Railways, page 321",
          "text": "The Type 3 will propel the unit on the return working to Bournemouth Central, where it will be buffered up to the remaining units for the journey back to Waterloo.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To move (a rail vehicle) so that its buffers are touching the buffers of another rail vehicle."
      ],
      "links": [
        [
          "rail transport",
          "rail transport"
        ]
      ],
      "raw_glosses": [
        "(rail transport, transitive) To move (a rail vehicle) so that its buffers are touching the buffers of another rail vehicle."
      ],
      "tags": [
        "transitive"
      ],
      "topics": [
        "rail-transport",
        "railways",
        "transport"
      ]
    }
  ],
  "word": "buffer up"
}