ultra

/หˆสŒltษนษ™/

IPA: /AH1 L T R AH0/

noun
  1. 1

    An ultraroyalist in France.

  2. 2

    An extremist, especially an ultranationalist.

  3. 3

    An especially devoted football fan, typically associated with the intimidating use of extremist slogans, pyrotechnics and sometimes hooligan violence.

  4. 4

    An ultramarathon.

  5. 5

    An ultra-prominent peak.

  6. 6

    (usually capitalised) Code name used by British codebreakers during World War 2 for decrypted information gained from the enemy.

adjective
  1. 1

    Extreme; far beyond the norm; fanatical; uncompromising.

    โ€œan ultra reformer; ultra measuresโ€

Source: https://en.wiktionary.org/wiki/ultra