Noun
a symbol in a logical or mathematical expression that can be replaced by the name of any member of specified set
a person authorized to act for another
Source: WordNetAdding, I’m aware of the terrific Flexnet approach — “ginormous hairball” is a sort of placeholder phrase for it — but there’s only so much time for a given post. Source: Internet
Because it was used alone, not just as a placeholder, this Hellenistic zero was perhaps the first documented use of a number zero in the Old World. Source: Internet
Also, when referring to an example of some person performing a certain action, Perico de los Palotes can also be used as a placeholder for a real name. Source: Internet
All the placeholder virtual machines at the recovery site are replaced by powered on VMs that will be added to the vCenter Server's inventory. Source: Internet
Also, make sure your translation service understands that they should leave these placeholder values untouched. Source: Internet
But, did you know the makers had a placeholder instead of the theme song before the pilot episode released? Source: Internet