>Worse - even the most common words gain new meanings regularly. Just look at your computer and the language of electronics - there are numerous pulses (it's alive!), ramps (drive carefully), gates (knock first), buses (but no trams), keys and locks (but none of the former opens any of the latter), fans (you know the Chinese ladies' accessory), drivers (without vehicles), casings (without gunpowder), flip-flops (never say which size foot), monitors (but no frigates), bridges (no rivers), jacks (with no cars to lift), mice (no cats), cards (but nobody's playing), stacks (no hay), forks (no spoon), chips (no potatos), arrows (no bows), escape sequences (no jailbreak plan), pirates (no ships), windows (no glass - who would want that, I wonder), disks (no Greeks to cast them), washers (but no dirty laundry), and finally anything with more than three pieces connected is some grid.

Masters and slaves, too. (A while ago, some county authority, somewhere in California I think it was, courteously asked computer makers to please stop using these offensive words!)