glimpse vs peek

glimpse

noun
  • A brief look, glance, or peek. 

  • A sudden flash. 

  • A faint idea; an inkling. 

verb
  • To see or view briefly or incompletely. 

  • To appear by glimpses. 

peek

noun
  • A quick glance or look. 

verb
  • To look slyly, or with the eyes half closed, or through a crevice; to peep. 

  • To be only slightly, partially visible, as if peering out from a hiding place. 

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