epoch vs while

epoch

noun
  • A specific instant in time, chosen as the point of reference or zero value of a system that involves identifying instants of time. 

  • A geochronologic unit of hundreds of thousands to millions of years; a subdivision of a period, and subdivided into ages (or sometimes subepochs). 

  • A particular period of history, or of a person's life, especially one considered noteworthy or remarkable. 

  • A notable event which marks the beginning of such a period. 

  • One complete presentation of the training data set to an iterative machine learning algorithm. 

verb
  • To divide (data) into segments by time period. 

while

noun
  • An uncertain duration of time, a period of time. 

  • an uncertain long period of time 

  • an uncertain short moment 

verb
  • To pass (time) idly. 

  • To occupy or entertain (someone) in order to let time pass. 

prep
  • Until. 

conj
  • As long as. 

  • Until. 

  • During the same time that. 

  • Used to denote an individual experiencing racial profiling when performing a seemingly benign activity. 

  • Although. 

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