• To declare with assurance or plainly and strongly; to state positively.
  • To use or exercise and thereby prove the existence of.
  • To maintain or defend, as a cause or a claim, by words or measures; to vindicate a claim or title to
  • To specify that a condition or expression is true at a certain point in the code.
  • To set a signal on a line using a voltage or electric current.



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  • From Latin assertus, perfect passive participle of asserō, from ad + serō.

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