"T9" meaning in English

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "ru",
            "2": "Т9",
            "bor": "1"
          },
          "expansion": "→ Russian: Т9 (T9)",
          "name": "desc"
        }
      ],
      "text": "→ Russian: Т9 (T9)"
    }
  ],
  "etymology_text": "From \"Text on 9 keys\".",
  "head_templates": [
    {
      "args": {},
      "expansion": "T9",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Technology",
          "orig": "en:Technology",
          "parents": [
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "a late-1990s predictive text technology by Tegic Communications for mobile phones with a 3×4 numeric keypad"
      ],
      "id": "en-T9-en-name-ev6xvGqX",
      "links": [
        [
          "technology",
          "technology"
        ],
        [
          "1990s",
          "1990s"
        ],
        [
          "predictive text",
          "predictive text"
        ],
        [
          "mobile phone",
          "mobile phone"
        ],
        [
          "numeric keypad",
          "numeric keypad"
        ]
      ],
      "qualifier": "mobile technology",
      "raw_glosses": [
        "(mobile technology) a late-1990s predictive text technology by Tegic Communications for mobile phones with a 3×4 numeric keypad"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ti naɪn/",
      "tags": [
        "US"
      ]
    }
  ],
  "word": "T9"
}

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "ru",
            "2": "Т9",
            "bor": "1"
          },
          "expansion": "→ Russian: Т9 (T9)",
          "name": "desc"
        }
      ],
      "text": "→ Russian: Т9 (T9)"
    }
  ],
  "etymology_text": "From \"Text on 9 keys\".",
  "head_templates": [
    {
      "args": {},
      "expansion": "T9",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English proper nouns",
        "English terms spelled with numbers",
        "English terms with IPA pronunciation",
        "English uncountable nouns",
        "English words without vowels",
        "en:Technology"
      ],
      "glosses": [
        "a late-1990s predictive text technology by Tegic Communications for mobile phones with a 3×4 numeric keypad"
      ],
      "links": [
        [
          "technology",
          "technology"
        ],
        [
          "1990s",
          "1990s"
        ],
        [
          "predictive text",
          "predictive text"
        ],
        [
          "mobile phone",
          "mobile phone"
        ],
        [
          "numeric keypad",
          "numeric keypad"
        ]
      ],
      "qualifier": "mobile technology",
      "raw_glosses": [
        "(mobile technology) a late-1990s predictive text technology by Tegic Communications for mobile phones with a 3×4 numeric keypad"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ti naɪn/",
      "tags": [
        "US"
      ]
    }
  ],
  "word": "T9"
}