a quavering or vibratory sound, especially a rapid alternation of sung or played notes:the caged bird launched into a piercing trill
the pronunciation of a consonant, especially r, with rapid vibration of the tongue against the hard or soft palate or the uvula.
ზმნა
Universal
produce a quavering or warbling sound:a skylark was trilling overhead [with direct speech]:‘Coming sir,’ they both trilled [with object]:trilling a love ballad, she led him to her chair
[with object] pronounce (a consonant) by rapid vibration of the tongue against the hard or soft palate or the uvula.