A quaver; a shake of the voice in singing, or of the sound of an instrument.

To utter with a quavering or tremulousness of voice; to shake. The sober-suited songstress trills her lay.

To flow in a small stream, or in drops rapidly succeeding each other; to trickle. And now and then an ample tear trill’d down . Her delicate cheek.

To shake or quaver; to play in tremulous vibrations of sound. To judge of trilling notes and tripping feet.