IPA: /ˈtʃɜːr.pɪ.li/
KK: /ˈtʃɪr.pɪ.li/
In a cheerful and lively manner, often associated with the sounds made by birds.
The children sang chirpily as they played in the park.
Chirpily → It is formed from "chirp" (from Middle English "chirpen", meaning to make a short, sharp sound) and "-ily" (a suffix meaning in a manner of). The word "chirpily" means in a manner that resembles or is characteristic of chirping, often implying a cheerful or lively tone.
Think of the sound 'chirp' that birds make, and remember that 'chirpily' describes doing something in a cheerful or lively way, just like the joyful sound of chirping.