chooser vs gatherer

chooser

noun
  • One who chooses something. 

  • A user interface element allowing something to be selected from a list or group. 

gatherer

noun
  • A person who collects rent or taxes. 

  • A person who gathers things. 

  • A workman who collects molten glass on the end of a rod preparatory to blowing. 

  • An attachment to a sewing machine for making gathers in the cloth. 

How often have the words chooser and gatherer occurred in a corpus of books? (source: Google Ngram Viewer )