plain ‧ song /ˈpleɪnsɒŋ $ -sɒːŋ/ BrE AmE ( also plainchant ) noun [uncountable]
a type of old Christian church music in which people sing a simple tune without musical instruments
plain ‧ song /ˈpleɪnsɒŋ $ -sɒːŋ/ BrE AmE ( also plainchant ) noun [uncountable]
a type of old Christian church music in which people sing a simple tune without musical instruments
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012