Trill /(?)/

1. To flow in a small stream, or in drops rapidly succeeding each other; to trickle.

   And now and then an ample tear trilled down Her delicate cheek.

   Whispered sounds Of waters, trilling from the riven stone.

1. To turn round; to twirl. [Obs.]

   Bid him descend and trill another pin.

imp. & p. p. Trilled; p. pr. & vb. n. Trilling

1. To impart the quality of a trill to; to utter as, or with, a trill; as, to trill the r; to trill a note.

   The sober-suited songstress trills her lay.

1. To utter trills or a trill; to play or sing in tremulous vibrations of sound; to have a trembling sound; to quaver.

   To judge of trilling notes and tripping feet.

1. 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.
2. The action of the organs in producing such sounds; as, to give a trill to the tongue. d
3. 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. (Mus.)