warble — OET · Shobdo

warble

verb

larks warbled in the blue sky:

trill, sing, chirp, chirrup, chirr, cheep, twitter, tweet, whistle, chatter, squeak, pipe, peep.

noun

a solitary warble pierces the air:

trill, trilling, song, birdsong, cry, warbling, chirp, chirping, chirrup, chirruping, chirr, chirring, cheep, cheeping, twitter, twittering, tweet, tweeting, whistle, whistling, chatter, chattering, squeak, squeaking, pipe, piping, peep, peeping, call, calling.

warble (1) Oxford Dictionary of English