1 [singular] a way of speaking in which your voice keeps rising and falling :
I recognized her soft singsong immediately.
I recognized her soft singsong immediately.2 [countable] British EnglishDL an informal occasion when people sing songs together [= singalong American English]
We had a bit of a singsong later.
We had a bit of a singsong later. —singsong adjective:
a singsong voice
a singsong voice