Meaning & Definition of Trill in English

1. A note that alternates rapidly with another note a semitone above it

2. 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"

1. Pronounce with a trill, of the phoneme `r'

• "Some speakers trill their r's"

2. Sing or play with trills, alternating with the half note above or below