"tra" meaning in English

{
  "etymology_number": 1,
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "vi",
        "3": "cá tra",
        "4": "(cá) tra"
      },
      "expansion": "Vietnamese (cá) tra",
      "name": "bor"
    },
    {
      "args": {
        "1": "en",
        "2": "km",
        "3": "ប្រា",
        "4": "",
        "5": "certain Pangasius species"
      },
      "expansion": "Khmer ប្រា (praa, “certain Pangasius species”)",
      "name": "der"
    }
  ],
  "etymology_text": "From Vietnamese (cá) tra, from Khmer ប្រា (praa, “certain Pangasius species”).",
  "forms": [
    {
      "form": "tra",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "tra"
      },
      "expansion": "tra (plural tra)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "7 93",
          "kind": "lifeform",
          "langcode": "en",
          "name": "Catfish",
          "orig": "en:Catfish",
          "parents": [
            "Fish",
            "Otocephalan fish",
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "The catfish Pangasianodon hypophthalmus."
      ],
      "id": "en-tra-en-noun-gyE~X-wZ",
      "links": [
        [
          "catfish",
          "catfish"
        ]
      ]
    }
  ],
  "word": "tra"
}

{
  "etymology_number": 2,
  "etymology_text": "From tra-la-la.",
  "head_templates": [
    {
      "args": {},
      "expansion": "tra",
      "name": "en-interj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "senses": [
    {
      "glosses": [
        "A meaningless syllable used when singing a tune."
      ],
      "id": "en-tra-en-intj-9-dcwP6K"
    }
  ],
  "word": "tra"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English indeclinable nouns",
    "English interjections",
    "English lemmas",
    "English nouns",
    "English nouns with irregular plurals",
    "English terms borrowed from Vietnamese",
    "English terms derived from Khmer",
    "English terms derived from Vietnamese",
    "en:Catfish"
  ],
  "etymology_number": 1,
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "vi",
        "3": "cá tra",
        "4": "(cá) tra"
      },
      "expansion": "Vietnamese (cá) tra",
      "name": "bor"
    },
    {
      "args": {
        "1": "en",
        "2": "km",
        "3": "ប្រា",
        "4": "",
        "5": "certain Pangasius species"
      },
      "expansion": "Khmer ប្រា (praa, “certain Pangasius species”)",
      "name": "der"
    }
  ],
  "etymology_text": "From Vietnamese (cá) tra, from Khmer ប្រា (praa, “certain Pangasius species”).",
  "forms": [
    {
      "form": "tra",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "tra"
      },
      "expansion": "tra (plural tra)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Entries using missing taxonomic name (species)"
      ],
      "glosses": [
        "The catfish Pangasianodon hypophthalmus."
      ],
      "links": [
        [
          "catfish",
          "catfish"
        ]
      ]
    }
  ],
  "word": "tra"
}

{
  "categories": [
    "English interjections",
    "English lemmas",
    "en:Catfish"
  ],
  "etymology_number": 2,
  "etymology_text": "From tra-la-la.",
  "head_templates": [
    {
      "args": {},
      "expansion": "tra",
      "name": "en-interj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "senses": [
    {
      "glosses": [
        "A meaningless syllable used when singing a tune."
      ]
    }
  ],
  "word": "tra"
}