sing·song 
/ˈsɪŋˌsɑ:ŋ/ noun
plural sing·songs /ˈsɪŋˌsɑ:ŋ/ noun 1 [singular] : a way of speaking in which the sound of your voice rises and falls in a pattern
▪ They spoke in a singsong. — often used before another noun ▪ a singsong voice 2 [count] Brit : sing-along
▪ They spoke in a singsong. — often used before another noun ▪ a singsong voice
