Simple past tense and past participle of trill.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "trilled" in a sentence
"The call trilled and rumbled, rising and falling, now a patter of light musical sound, now a low grumble."
"So saying, the Robin trilled out a pleasant farewell, and returned to the shrubbery grounds, where, in an ivy covered wall, he had found for himself a snug little winter's home."
"Here the Robin trilled out a few of his favourite notes, but the Tortoise soon interrupted him."