Dictionary definition · trill
noun
- a note that alternates rapidly with another note a semitone above it
- 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"
verb
- pronounce with a trill, of the phoneme /r/"Some speakers trill their r's"
- sing or play with trills, alternating with the half note above or below
Source: Open English WordNet (CC BY 4.0).