the articulation of a consonant (especially the consonant `r') with a rapid flutter of the tongue against the palate or uvula
"he pronounced his R's with a distinct trill"
A rapid alternation between an indicated note and the one above it, in musical notation usually indicated with the letters tr written above the staff.
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 trickle.
To twirl.
true, respected