Pronunciation: (tril), [key] 1. to sing or play with a vibratory
or quavering effect. 2. Phonet.to produce (a sound) with a
trill. 3. (of birds, insects, etc.) to sing or utter in a
succession of rapidly alternating sounds. 1. to resound
vibrantly, or with a rapid succession of sounds, as the voice,
song, or laughter. 2. to utter or make a sound or succession of
sounds resembling such singing, as a bird, frog, grasshopper, or
person laughing. 3. to execute a shake or trill with the voice
or on a musical instrument. 4. Phonet.to execute a trill, esp.
with the tongue, as while singing, talking, or whistling. 1. the
act or sound of trilling. 2. Music.a rapid alternation of two
adjacent tones; a shake. 3. a similar sound, or succession of
sounds, uttered or made by a bird, an insect, a person laughing,
etc. a. a sequence of repetitive, rapid, vibratory movements
produced in any free articulator or membrane by a rush of air
expelled from the lungs and often causing a corresponding
sequence of contacts between the