seep vs trill

seep

verb
  • (of a crack etc.) To allow a liquid to pass through, to leak. 

  • To enter or penetrate slowly; to spread or diffuse. 

  • To diminish or wane away slowly. 

  • To ooze or pass slowly through pores or other small openings, and in overly small quantities; said of liquids, etc. 

noun
  • The seeping away of a liquid, etc. 

  • A seafloor vent. 

  • Moisture, liquid, gas, etc. that seeps out; a seepage. 

  • A small spring, pool, or other spot where liquid from the ground (e.g. water, petroleum or tar) has oozed to the surface; a place of seeping. 

trill

verb
  • To create a trill sound; to utter trills or a trill; to play or sing in tremulous vibrations of sound; to have a trembling sound; to quaver. 

  • To impart the quality of a trill to; to utter as, or with, a trill. 

noun
  • A rapid alternation between an indicated note and the one above it, in musical notation usually indicated with the letters tr written above the staff. 

  • A type of consonantal sound that is produced by vibrations of the tongue against the place of articulation: for example, Spanish ⟨rr⟩, /r/. 

  • A tremulous high-pitched vocal sound produced by cats. 

adj
  • true, respected 

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