tattler vs tattletale

tattler

noun
  • One who tattles (notifies authorities of illicit behavior) or is inclined to do so; a tattletale. 

  • Either of two similar bird species in the shorebird genus Heteroscelus (Tringa in some taxonomies). 

  • A device fitted to a vehicle to measure mileage etc. 

tattletale

noun
  • One who tattles (reports others' wrongdoings), often a child seeking attention. 

  • One who gossips, often for the sake of attention. 

verb
  • To act as a tattletale; to tell on; to give away, reveal, or expose. 

adj
  • telltale; giveaway 

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