to sing or play with a vibratory or quavering effect.
2.
Phonetics. to produce (a sound) with a trill.
3.
(of birds, insects, etc.) to sing or utter in a succession of rapidly alternating sounds.
verb (used without object)
4.
to resound vibrantly, or with a rapid succession of sounds, as the voice, song, or laughter.
5.
to utter or make a sound or succession of sounds resembling such singing, as a bird, frog, grasshopper, or person laughing.
6.
to execute a shake or trill with the voice or on a musical instrument.
7.
Phonetics. to execute a trill, especially with the tongue, as while singing, talking, or whistling.
noun
8.
the act or sound of trilling.
9.
Music. a rapid alternation of two adjacent tones; a shake.
10.
a similar sound, or succession of sounds, uttered or made by a bird, an insect, a person laughing, etc.
11.
Phonetics.
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 vibrating articulator and another organ or surface.
b.
a speech sound produced by such a trill.
Origin: 1635–45; < Italian trillo quaver or warble in singing ≪ Germanic; compare Dutch trillen to vibrate, late Middle English trillen to shake or rock (something)
Origin: 1300–50; Middle English trillen to make (something) turn, to roll, flow (said of tears, water) < Old Danish trijlæ to roll (said, e.g., of tears and of a wheelbarrow); compare Norwegian trille, Swedish trilla. See trill1
1649, from It. trillio, triglio "a quavering or warbling in singing," probably of imitative origin. The verb is 1666, from It. trillare "to quaver, trill."