1. the act or sound of making a warbling or vibrating sound

1. making a high-pitched warbling sound, especially as birds do
Usage: present participle of ‘trill’
2. pronouncing a consonant with a rapid vibration of the tongue
Usage: linguistics

Examples

• The canary was trilling beautifully in its cage.
• She heard birds trilling in the early morning.
• He practiced trilling his R’s for the Spanish pronunciation.
• The opera singer’s trilling impressed the audience.
• The sweet trilling of the robin woke me up.
• Her trilling laughter filled the room.
• The flute player added a delicate trilling to the melody.