Definition of Trill

Noun

• the articulation of a consonant (especially the consonant `r') with a rapid flutter of the tongue against the palate or uvula
  "he pronounced his R's with a distinct trill"
  
• a note that alternates rapidly with another note a semitone above it
  shake

Verb

• sing or play with trills, alternating with the half note above or below
  warble quaver
• pronounce with a trill, of the phoneme `r'
  "Some speakers trill their r's"
  

• Scrabble® score of the trill (5)
• Word Chums® score of the trill (7)
• Words With Friends® score of the trill (7)