This might not prevail in the world of tech, but in language studies, words mean what the majority of their users think they mean. Examples:

   * Decimated. How many of you know this means (or once meant) reduced by 1/10?
   * Literally. Often used to mean figuratively, to the degree that it can be relied on to mean nothing at all.
   * Reign, as in "reign him in". Clearly now an accepted misuse, reign once defined what a monarch does to a kingdom, not what a cowboy does to a horse (i.e. rein).
   * Fewer / less. Sadly interchangeable in modern writing, "fewer" was once reserved for enumerable things, while "less" referred to continuous measures. Less water, fewer liters of water.
   * Double precision. In computer science, defined in IEEE 754 as a floating-point data format with a 53-bit mantissa, therefore 15.95 decimal digits (53 * log(2)/log(10)). Now the norm, the default, to the degree that people may forget what "double" refers to. Because of double's ubiquity, in the fullness of time I expect single precision will come to be known as ... wait for it ... half precision.