• ultimatum

    An ultimatum is a final statement or offer on an issue; for example, the phrase "Do this, or you can forget it!" is an example of an ultimatum.

  • ulterior

    When you have an ulterior motive, you have a hidden reason for doing something.

  • ultimate

    furthest or highest in degree or order

  • ultraconservative

    extremely conservative

  • ultramarathon

    a race that is longer than a marathon, that is, more than 26.2 miles

  • ultramarine

    of a brilliant pure blue to purplish blue color

  • ultrasonic

    having frequencies above those of audible sound

  • ultraviolet

    having or employing wavelengths shorter than light but longer than X-rays

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