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.
When you have an ulterior motive, you have a hidden reason for doing something.
In a series of things, the penultimate thing is the second to last.
furthest or highest in degree or order
a race that is longer than a marathon, that is, more than 26.2 miles
of a brilliant pure blue to purplish blue color
having frequencies above those of audible sound
having or employing wavelengths shorter than light but longer than X-rays
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