To create a trill sound; to utter trills or a trill; to play or sing in tremulous vibrations of sound; to have a trembling sound; to quaver.
To impart the quality of a trill to; to utter as, or with, a trill.
to trill a note, or the letter r
To trickle.
To twirl.
The production of a trill sound.
A compound crystal consisting of three individuals.
One of three children born at the same birth; a triplet.