IPA: /ˈwɔːr.bli/
KK: /ˈwɔrblɪ/
Describing a sound that is wavering or fluctuating, often in a musical or melodic way.
The bird's song was warbly and sweet, filling the air with a cheerful melody.
The word 'warbly' is derived from the word 'warble' (originating from Middle English 'warblen', meaning to sing or chirp), with the suffix '-y' (meaning characterized by). Thus, 'warbly' describes a sound that is characterized by a warbling or singing quality.
Think of the word 'warble' which means to sing or chirp, and remember that 'warbly' describes something that has a singing or chirping quality.