1. trill - Noun
2. trill - Adjective
3. trill - Verb
To flow in a small stream, or in drops rapidly succeeding each other; to trickle.
To turn round; to twirl.
To impart the quality of a trill to; to utter as, or with, a trill; as, to trill the r; to trill a note.
To utter trills or a trill; to play or sing in tremulous vibrations of sound; to have a trembling sound; to quaver.
A sound, of consonantal character, made with a rapid succession of partial or entire intermissions, by the vibration of some one part of the organs in the mouth -- tongue, uvula, epiglottis, or lip -- against another part; as, the r is a trill in most languages.
The action of the organs in producing such sounds; as, to give a trill to the tongue. d
A shake or quaver of the voice in singing, or of the sound of an instrument, produced by the rapid alternation of two contiguous tones of the scale; as, to give a trill on the high C. See Shake.
Source: Webster's dictionaryDecember, herald of destruction, takes you on a long stroll through the black torsos of trees and leaves scorched in autumn's fire,as if to say: so much then for your secrets and your treasures, the fervent trill of small birds, the promises of summer months. Adam Zagajewski
How still it is! Stinging into the stones, The locusts' trill. Matsuo Bashō
Some speakers trill their r's Source: Internet
A trill initiated from just hammering the finger up and down on the fingerboard will create a harsher quality than with a vibrato trill. Source: Internet
In the Hellenistic period, Akkadian /r/ was transcribed using the Greek ρ, indicating it was pronounced similarly as an alveolar trill (though Greeks may also have perceived a uvular trill as ρ). Source: Internet
For example, a trill on B 3-C4 is virtually impossible as the slide must move two positions (either 1st-to-3rd or 5th-to-3rd), however at an octave higher (B 4-C5) the notes can both be achieved in 1st position as a lip trill. Source: Internet