The word ‘placeholder’ has two interpretations in a Scrivener context.
Loosely speaking, a placeholder is something which ‘holds a place’ until you, the writer, provides better information.
More specifically, tag words are strings of code that act as placeholders and which will be assigned a value by the Scrivener software during compile .
My focus in this series in on the tag words, but let’s deal with the more general interpretation...